Spoken notifications

ABSTRACT

An example method includes, at an electronic device: receiving an indication of a notification; in accordance with receiving the indication of the notification: obtaining one or more data streams from one or more sensors; determining, based on the one or more data streams, whether a user associated with the electronic device is speaking; and in accordance with a determination that the user is not speaking: causing an output associated with the notification to be provided.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to U.S. Provisional Patent Application No. 62/843,676, entitled “SPOKEN NOTIFICATIONS,” filed on May 6, 2019, the content of which is hereby incorporated by reference in its entirety.

FIELD

This relates generally to spoken notifications and, more specifically, to providing and responding to spoken notifications.

BACKGROUND

Intelligent automated assistants (or digital assistants) can provide a beneficial interface between human users and electronic devices. Such assistants can allow users to interact with devices or systems using natural language in spoken and/or text forms. For example, a user can provide a speech input containing a user request to a digital assistant operating on an electronic device. The digital assistant can interpret the user's intent from the speech input and operationalize the user's intent into tasks. The tasks can then be performed by executing one or more services of the electronic device, and a relevant output responsive to the user request can be returned to the user.

The electronic device can be communicatively coupled to a peripheral device (e.g., a headset) configured to provide spoken outputs associated with notifications received at the electronic device. It can be desirable to provide such outputs at appropriate times and to allow efficient user response to such outputs.

SUMMARY

Example methods are disclosed herein. An example method includes, at an electronic device: receiving an indication of a notification; in accordance with receiving the indication of the notification: obtaining one or more data streams from one or more sensors; determining, based on the one or more data streams, whether a user associated with the electronic device is speaking; and in accordance with a determination that the user is not speaking: causing an output associated with the notification to be provided.

Example non-transitory computer-readable media are disclosed herein. An example non-transitory computer-readable storage medium stores one or more programs. The one or more programs comprise instructions, which when executed by one or more processors of an electronic device, cause the electronic device to: receive an indication of a notification; in accordance with receiving the indication of the notification: obtain one or more data streams from one or more sensors; determine, based on the one or more data streams, whether a user associated with the electronic device is speaking; and in accordance with a determination that the user is not speaking: cause an output associated with the notification to be provided.

Example electronic devices are disclosed herein. An example electronic device comprises one or more processors; a memory; and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for: receiving an indication of a notification; in accordance with receiving the indication of the notification: obtaining one or more data streams from one or more sensors; determining, based on the one or more data streams, whether a user associated with the electronic device is speaking; and in accordance with a determination that the user is not speaking: causing an output associated with the notification to be provided.

An example electronic device comprises means for: receiving an indication of a notification; in accordance with receiving the indication of the notification: obtaining one or more data streams from one or more sensors; determining, based on the one or more data streams, whether a user associated with the electronic device is speaking; and in accordance with a determination that the user is not speaking: causing an output associated with the notification to be provided.

Example methods are disclosed herein. An example method includes, at an electronic device: causing a first output associated with a received notification to be provided; after the first output is provided: obtaining one or more data streams from one or more sensors; determining, based on the one or more data streams, whether a user associated with the electronic device is speaking; in accordance with a determination that the user is speaking: providing at least a portion of the one or more data streams to an external electronic device, the portion including data representing a received speech input requesting performance of a task associated with the notification; receiving, from the external electronic device, an indication that the task has been initiated; and causing a second output based on the received indication to be provided.

Example non-transitory computer-readable media are disclosed herein. An example non-transitory computer-readable storage medium stores one or more programs. The one or more programs comprise instructions, which when executed by one or more processors of an electronic device, cause the electronic device to: cause a first output associated with a received notification to be provided; after the first output is provided: obtain one or more data streams from one or more sensors; determine, based on the one or more data streams, whether a user associated with the electronic device is speaking; in accordance with a determination that the user is speaking: provide at least a portion of the one or more data streams to an external electronic device, the portion including data representing a received speech input requesting performance of a task associated with the notification; receive, from the external electronic device, an indication that the task has been initiated; and cause a second output based on the received indication to be provided.

Example electronic devices are disclosed herein. An example electronic device comprises one or more processors; a memory; and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for: causing a first output associated with a received notification to be provided; after the first output is provided: obtaining one or more data streams from one or more sensors; determining, based on the one or more data streams, whether a user associated with the electronic device is speaking; in accordance with a determination that the user is speaking: providing at least a portion of the one or more data streams to an external electronic device, the portion including data representing a received speech input requesting performance of a task associated with the notification; receiving, from the external electronic device, an indication that the task has been initiated; and causing a second output based on the received indication to be provided.

An example electronic device comprises means for: causing a first output associated with a received notification to be provided; after the first output is provided: obtaining one or more data streams from one or more sensors; determining, based on the one or more data streams, whether a user associated with the electronic device is speaking; in accordance with a determination that the user is speaking: providing at least a portion of the one or more data streams to an external electronic device, the portion including data representing a received speech input requesting performance of a task associated with the notification; receiving, from the external electronic device, an indication that the task has been initiated; and causing a second output based on the received indication to be provided.

Example methods are disclosed herein. An example method includes, at an electronic device: receiving an indication of a notification; in accordance with receiving the indication of the notification: determining whether an output associated with the notification would interrupt a user associated with the electronic device; and in accordance with a determination that the output would not interrupt the user: causing the output to be provided; and in accordance with a determination that the output would interrupt the user: forgoing causing the output to be provided.

Example non-transitory computer-readable media are disclosed herein. An example non-transitory computer-readable storage medium stores one or more programs. The one or more programs comprise instructions, which when executed by one or more processors of an electronic device, cause the electronic device to: receive an indication of a notification; in accordance with receiving the indication of the notification: determine whether an output associated with the notification would interrupt a user associated with the electronic device; and in accordance with a determination that the output would not interrupt the user: cause the output to be provided; and in accordance with a determination that the output would interrupt the user: forgo causing the output to be provided.

Example electronic devices are disclosed herein. An example electronic device comprises one or more processors; a memory; and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for: receiving an indication of a notification; in accordance with receiving the indication of the notification: determining whether an output associated with the notification would interrupt a user associated with the electronic device; and in accordance with a determination that the output would not interrupt the user: causing the output to be provided; and in accordance with a determination that the output would interrupt the user: forgoing causing the output to be provided.

An example electronic device comprises means for: receiving an indication of a notification; in accordance with receiving the indication of the notification: determining whether an output associated with the notification would interrupt a user associated with the electronic device; and in accordance with a determination that the output would not interrupt the user: causing the output to be provided; and in accordance with a determination that the output would interrupt the user: forgoing causing the output to be provided.

Causing an output associated with the notification to be provided in accordance with a determination that the user is not speaking allows spoken outputs associated with received notifications (spoken notification outputs) to be provided at appropriate times. For example, a user may not be interrupted by spoken notification outputs while speaking, and may be provided with spoken notification outputs while not speaking. In this manner, the user device interface may be more efficient (e.g., by automatically providing a user with spoken notification outputs, by providing such outputs at appropriate times, and by sparing users the burden of manually checking notifications), which additionally reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently.

In accordance with a determination that the user is speaking: providing at least a portion of one or more data streams to an external electronic device, the portion including data representing a received speech input requesting performance of a task associated with the notification allows efficient user response to spoken notification outputs. For example, after a spoken notification output (e.g., a spoken text message) is provided, a user can provide a speech input (e.g., “reply”) responsive to the notification output. Data representing the speech input can thus be provided to an external electronic device that can initiate (or perform) the requested task based on the data. Further, providing such data in accordance with a determination that the user is speaking may improve user privacy by only sending audio data from a user's device(s) to external device(s) when the user is speaking to his or her device(s). This may advantageously prevent speech not directed to a user's device(s) (e.g., background speech) from being sent to external devices. In this manner, the user device interface may be more efficient (e.g., by allowing efficient response to spoken notification outputs, by sparing the users the burden of manually responding to notifications (e.g., typing a reply to a text message), by improving user privacy), which additionally reduces power usage and improves battery life of the device by enabling the user to use the device more quickly and efficiently.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram illustrating a system and environment for implementing a digital assistant, according to various examples.

FIG. 2A is a block diagram illustrating a portable multifunction device implementing the client-side portion of a digital assistant, according to various examples.

FIG. 2B is a block diagram illustrating exemplary components for event handling, according to various examples.

FIG. 3 illustrates a portable multifunction device implementing the client-side portion of a digital assistant, according to various examples.

FIG. 4 is a block diagram of an exemplary multifunction device with a display and a touch-sensitive surface, according to various examples.

FIG. 5A illustrates an exemplary user interface for a menu of applications on a portable multifunction device, according to various examples.

FIG. 5B illustrates an exemplary user interface for a multifunction device with a touch-sensitive surface that is separate from the display, according to various examples.

FIG. 6A illustrates a personal electronic device, according to various examples.

FIG. 6B is a block diagram illustrating a personal electronic device, according to various examples.

FIG. 7A is a block diagram illustrating a digital assistant system or a server portion thereof, according to various examples.

FIG. 7B illustrates the functions of the digital assistant shown in FIG. 7A, according to various examples.

FIG. 7C illustrates a portion of an ontology, according to various examples.

FIG. 8A shows an electronic device providing an output associated with a notification when a user of the device is not speaking, according to some examples.

FIG. 8B shows a system for providing and responding to spoken notifications, according to some examples.

FIG. 8C shows an electronic device providing an output associated with a notification when a user of the device is speaking, according to some examples.

FIG. 9A shows a flow diagram of a process for responding to spoken notifications, according to some examples.

FIG. 9B shows a device providing a notification output, according to some examples.

FIG. 9C shows a user responding to a notification output, according to some examples.

FIG. 9D shows a device providing an audio output indicating that a task has been initiated, according to some examples.

FIGS. 10A-10E illustrate a process for providing notifications, according to various examples.

FIGS. 11A-11D illustrate a process for responding to notifications, according to various examples.

FIG. 12 illustrates a process for providing notifications, according to various examples.

DETAILED DESCRIPTION

In the following description of examples, reference is made to the accompanying drawings in which are shown by way of illustration specific examples that can be practiced. It is to be understood that other examples can be used and structural changes can be made without departing from the scope of the various examples.

This generally relates to providing and responding to spoken notifications. Using the techniques discussed herein, spoken notifications may be provided at appropriate times and a user may efficiently respond to such notifications.

Although the following description uses terms “first,” “second,” etc. to describe various elements, these elements should not be limited by the terms. These terms are only used to distinguish one element from another. For example, a first input could be termed a second input, and, similarly, a second input could be termed a first input, without departing from the scope of the various described examples. The first input and the second input are both inputs and, in some cases, are separate and different inputs.

The terminology used in the description of the various described examples herein is for the purpose of describing particular examples only and is not intended to be limiting. As used in the description of the various described examples and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term “and/or” as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms “includes,” “including,” “comprises,” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

The term “if” may be construed to mean “when” or “upon” or “in response to determining” or “in response to detecting,” depending on the context. Similarly, the phrase “if it is determined” or “if [a stated condition or event] is detected” may be construed to mean “upon determining” or “in response to determining” or “upon detecting [the stated condition or event]” or “in response to detecting [the stated condition or event],” depending on the context.

1. System and Environment

FIG. 1 illustrates a block diagram of system 100 according to various examples. In some examples, system 100 implements a digital assistant. The terms “digital assistant,” “virtual assistant,” “intelligent automated assistant,” or “automatic digital assistant” refer to any information processing system that interprets natural language input in spoken and/or textual form to infer user intent, and performs actions based on the inferred user intent. For example, to act on an inferred user intent, the system performs one or more of the following: identifying a task flow with steps and parameters designed to accomplish the inferred user intent, inputting specific requirements from the inferred user intent into the task flow; executing the task flow by invoking programs, methods, services, APIs, or the like; and generating output responses to the user in an audible (e.g., speech) and/or visual form.

Specifically, a digital assistant is capable of accepting a user request at least partially in the form of a natural language command, request, statement, narrative, and/or inquiry. Typically, the user request seeks either an informational answer or performance of a task by the digital assistant. A satisfactory response to the user request includes a provision of the requested informational answer, a performance of the requested task, or a combination of the two. For example, a user asks the digital assistant a question, such as “Where am I right now?” Based on the user's current location, the digital assistant answers, “You are in Central Park near the west gate.” The user also requests the performance of a task, for example, “Please invite my friends to my girlfriend's birthday party next week.” In response, the digital assistant can acknowledge the request by saying “Yes, right away,” and then send a suitable calendar invite on behalf of the user to each of the user's friends listed in the user's electronic address book. During performance of a requested task, the digital assistant sometimes interacts with the user in a continuous dialogue involving multiple exchanges of information over an extended period of time. There are numerous other ways of interacting with a digital assistant to request information or performance of various tasks. In addition to providing verbal responses and taking programmed actions, the digital assistant also provides responses in other visual or audio forms, e.g., as text, alerts, music, videos, animations, etc.

As shown in FIG. 1, in some examples, a digital assistant is implemented according to a client-server model. The digital assistant includes client-side portion 102 (hereafter “DA client 102”) executed on user device 104 and server-side portion 106 (hereafter “DA server 106”) executed on server system 108. DA client 102 communicates with DA server 106 through one or more networks 110. DA client 102 provides client-side functionalities such as user-facing input and output processing and communication with DA server 106. DA server 106 provides server-side functionalities for any number of DA clients 102 each residing on a respective user device 104.

In some examples, DA server 106 includes client-facing I/O interface 112, one or more processing modules 114, data and models 116, and I/O interface to external services 118. The client-facing I/O interface 112 facilitates the client-facing input and output processing for DA server 106. One or more processing modules 114 utilize data and models 116 to process speech input and determine the user's intent based on natural language input. Further, one or more processing modules 114 perform task execution based on inferred user intent. In some examples, DA server 106 communicates with external services 120 through network(s) 110 for task completion or information acquisition. I/O interface to external services 118 facilitates such communications.

User device 104 can be any suitable electronic device. In some examples, user device 104 is a portable multifunctional device (e.g., device 200, described below with reference to FIG. 2A), a multifunctional device (e.g., device 400, described below with reference to FIG. 4), or a personal electronic device (e.g., device 600, described below with reference to FIG. 6A-6B.) A portable multifunctional device is, for example, a mobile telephone that also contains other functions, such as PDA and/or music player functions. Specific examples of portable multifunction devices include the Apple Watch®, iPhone®, iPod Touch®, and iPad® devices from Apple Inc. of Cupertino, Calif. Other examples of portable multifunction devices include, without limitation, earphones/headphones, speakers, and laptop or tablet computers. Further, in some examples, user device 104 is a non-portable multifunctional device. In particular, user device 104 is a desktop computer, a game console, a speaker, a television, or a television set-top box. In some examples, user device 104 includes a touch-sensitive surface (e.g., touch screen displays and/or touchpads). Further, user device 104 optionally includes one or more other physical user-interface devices, such as a physical keyboard, a mouse, and/or a joystick. Various examples of electronic devices, such as multifunctional devices, are described below in greater detail.

Examples of communication network(s) 110 include local area networks (LAN) and wide area networks (WAN), e.g., the Internet. Communication network(s) 110 is implemented using any known network protocol, including various wired or wireless protocols, such as, for example, Ethernet, Universal Serial Bus (USB), FIREWIRE, Global System for Mobile Communications (GSM), Enhanced Data GSM Environment (EDGE), code division multiple access (CDMA), time division multiple access (TDMA), Bluetooth, Wi-Fi, voice over Internet Protocol (VoIP), Wi-MAX, or any other suitable communication protocol.

Server system 108 is implemented on one or more standalone data processing apparatus or a distributed network of computers. In some examples, server system 108 also employs various virtual devices and/or services of third-party service providers (e.g., third-party cloud service providers) to provide the underlying computing resources and/or infrastructure resources of server system 108.

In some examples, user device 104 communicates with DA server 106 via second user device 122. Second user device 122 is similar or identical to user device 104. For example, second user device 122 is similar to devices 200, 400, or 600 described below with reference to FIGS. 2A, 4, and 6A-6B. User device 104 is configured to communicatively couple to second user device 122 via a direct communication connection, such as Bluetooth, NFC, BTLE, or the like, or via a wired or wireless network, such as a local Wi-Fi network. In some examples, second user device 122 is configured to act as a proxy between user device 104 and DA server 106. For example, DA client 102 of user device 104 is configured to transmit information (e.g., a user request received at user device 104) to DA server 106 via second user device 122. DA server 106 processes the information and returns relevant data (e.g., data content responsive to the user request) to user device 104 via second user device 122.

In some examples, user device 104 is configured to communicate abbreviated requests for data to second user device 122 to reduce the amount of information transmitted from user device 104. Second user device 122 is configured to determine supplemental information to add to the abbreviated request to generate a complete request to transmit to DA server 106. This system architecture can advantageously allow user device 104 having limited communication capabilities and/or limited battery power (e.g., a watch or a similar compact electronic device) to access services provided by DA server 106 by using second user device 122, having greater communication capabilities and/or battery power (e.g., a mobile phone, laptop computer, tablet computer, or the like), as a proxy to DA server 106. While only two user devices 104 and 122 are shown in FIG. 1, it should be appreciated that system 100, in some examples, includes any number and type of user devices configured in this proxy configuration to communicate with DA server system 106.

Although the digital assistant shown in FIG. 1 includes both a client-side portion (e.g., DA client 102) and a server-side portion (e.g., DA server 106), in some examples, the functions of a digital assistant are implemented as a standalone application installed on a user device. In addition, the divisions of functionalities between the client and server portions of the digital assistant can vary in different implementations. For instance, in some examples, the DA client is a thin-client that provides only user-facing input and output processing functions, and delegates all other functionalities of the digital assistant to a backend server.

2. Electronic Devices

Attention is now directed toward embodiments of electronic devices for implementing the client-side portion of a digital assistant. FIG. 2A is a block diagram illustrating portable multifunction device 200 with touch-sensitive display system 212 in accordance with some embodiments. Touch-sensitive display 212 is sometimes called a “touch screen” for convenience and is sometimes known as or called a “touch-sensitive display system.” Device 200 includes memory 202 (which optionally includes one or more computer-readable storage mediums), memory controller 222, one or more processing units (CPUs) 220, peripherals interface 218, RF circuitry 208, audio circuitry 210, speaker 211, microphone 213, input/output (I/O) subsystem 206, other input control devices 216, and external port 224. Device 200 optionally includes one or more optical sensors 264. Device 200 optionally includes one or more contact intensity sensors 265 for detecting intensity of contacts on device 200 (e.g., a touch-sensitive surface such as touch-sensitive display system 212 of device 200). Device 200 optionally includes one or more tactile output generators 267 for generating tactile outputs on device 200 (e.g., generating tactile outputs on a touch-sensitive surface such as touch-sensitive display system 212 of device 200 or touchpad 455 of device 400). These components optionally communicate over one or more communication buses or signal lines 203.

As used in the specification and claims, the term “intensity” of a contact on a touch-sensitive surface refers to the force or pressure (force per unit area) of a contact (e.g., a finger contact) on the touch-sensitive surface, or to a substitute (proxy) for the force or pressure of a contact on the touch-sensitive surface. The intensity of a contact has a range of values that includes at least four distinct values and more typically includes hundreds of distinct values (e.g., at least 256). Intensity of a contact is, optionally, determined (or measured) using various approaches and various sensors or combinations of sensors. For example, one or more force sensors underneath or adjacent to the touch-sensitive surface are, optionally, used to measure force at various points on the touch-sensitive surface. In some implementations, force measurements from multiple force sensors are combined (e.g., a weighted average) to determine an estimated force of a contact. Similarly, a pressure-sensitive tip of a stylus is, optionally, used to determine a pressure of the stylus on the touch-sensitive surface. Alternatively, the size of the contact area detected on the touch-sensitive surface and/or changes thereto, the capacitance of the touch-sensitive surface proximate to the contact and/or changes thereto, and/or the resistance of the touch-sensitive surface proximate to the contact and/or changes thereto are, optionally, used as a substitute for the force or pressure of the contact on the touch-sensitive surface. In some implementations, the substitute measurements for contact force or pressure are used directly to determine whether an intensity threshold has been exceeded (e.g., the intensity threshold is described in units corresponding to the substitute measurements). In some implementations, the substitute measurements for contact force or pressure are converted to an estimated force or pressure, and the estimated force or pressure is used to determine whether an intensity threshold has been exceeded (e.g., the intensity threshold is a pressure threshold measured in units of pressure). Using the intensity of a contact as an attribute of a user input allows for user access to additional device functionality that may otherwise not be accessible by the user on a reduced-size device with limited real estate for displaying affordances (e.g., on a touch-sensitive display) and/or receiving user input (e.g., via a touch-sensitive display, a touch-sensitive surface, or a physical/mechanical control such as a knob or a button).

As used in the specification and claims, the term “tactile output” refers to physical displacement of a device relative to a previous position of the device, physical displacement of a component (e.g., a touch-sensitive surface) of a device relative to another component (e.g., housing) of the device, or displacement of the component relative to a center of mass of the device that will be detected by a user with the user's sense of touch. For example, in situations where the device or the component of the device is in contact with a surface of a user that is sensitive to touch (e.g., a finger, palm, or other part of a user's hand), the tactile output generated by the physical displacement will be interpreted by the user as a tactile sensation corresponding to a perceived change in physical characteristics of the device or the component of the device. For example, movement of a touch-sensitive surface (e.g., a touch-sensitive display or trackpad) is, optionally, interpreted by the user as a “down click” or “up click” of a physical actuator button. In some cases, a user will feel a tactile sensation such as an “down click” or “up click” even when there is no movement of a physical actuator button associated with the touch-sensitive surface that is physically pressed (e.g., displaced) by the user's movements. As another example, movement of the touch-sensitive surface is, optionally, interpreted or sensed by the user as “roughness” of the touch-sensitive surface, even when there is no change in smoothness of the touch-sensitive surface. While such interpretations of touch by a user will be subject to the individualized sensory perceptions of the user, there are many sensory perceptions of touch that are common to a large majority of users. Thus, when a tactile output is described as corresponding to a particular sensory perception of a user (e.g., an “up click,” a “down click,” “roughness”), unless otherwise stated, the generated tactile output corresponds to physical displacement of the device or a component thereof that will generate the described sensory perception for a typical (or average) user.

It should be appreciated that device 200 is only one example of a portable multifunction device, and that device 200 optionally has more or fewer components than shown, optionally combines two or more components, or optionally has a different configuration or arrangement of the components. The various components shown in FIG. 2A are implemented in hardware, software, or a combination of both hardware and software, including one or more signal processing and/or application-specific integrated circuits.

Memory 202 includes one or more computer-readable storage mediums. The computer-readable storage mediums are, for example, tangible and non-transitory. Memory 202 includes high-speed random access memory and also includes non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Memory controller 222 controls access to memory 202 by other components of device 200.

In some examples, a non-transitory computer-readable storage medium of memory 202 is used to store instructions (e.g., for performing aspects of processes described below) for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. In other examples, the instructions (e.g., for performing aspects of the processes described below) are stored on a non-transitory computer-readable storage medium (not shown) of the server system 108 or are divided between the non-transitory computer-readable storage medium of memory 202 and the non-transitory computer-readable storage medium of server system 108.

Peripherals interface 218 is used to couple input and output peripherals of the device to CPU 220 and memory 202. The one or more processors 220 run or execute various software programs and/or sets of instructions stored in memory 202 to perform various functions for device 200 and to process data. In some embodiments, peripherals interface 218, CPU 220, and memory controller 222 are implemented on a single chip, such as chip 204. In some other embodiments, they are implemented on separate chips.

RF (radio frequency) circuitry 208 receives and sends RF signals, also called electromagnetic signals. RF circuitry 208 converts electrical signals to/from electromagnetic signals and communicates with communications networks and other communications devices via the electromagnetic signals. RF circuitry 208 optionally includes well-known circuitry for performing these functions, including but not limited to an antenna system, an RF transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a CODEC chipset, a subscriber identity module (SIM) card, memory, and so forth. RF circuitry 208 optionally communicates with networks, such as the Internet, also referred to as the World Wide Web (WWW), an intranet and/or a wireless network, such as a cellular telephone network, a wireless local area network (LAN) and/or a metropolitan area network (MAN), and other devices by wireless communication. The RF circuitry 208 optionally includes well-known circuitry for detecting near field communication (NFC) fields, such as by a short-range communication radio. The wireless communication optionally uses any of a plurality of communications standards, protocols, and technologies, including but not limited to Global System for Mobile Communications (GSM), Enhanced Data GSM Environment (EDGE), high-speed downlink packet access (HSDPA), high-speed uplink packet access (HSUPA), Evolution, Data-Only (EV-DO), HSPA, HSPA+, Dual-Cell HSPA (DC-HSPDA), long term evolution (LTE), near field communication (NFC), wideband code division multiple access (W-CDMA), code division multiple access (CDMA), time division multiple access (TDMA), Bluetooth, Bluetooth Low Energy (BTLE), Wireless Fidelity (Wi-Fi) (e.g., IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, and/or IEEE 802.11ac), voice over Internet Protocol (VoIP), Wi-MAX, a protocol for e mail (e.g., Internet message access protocol (IMAP) and/or post office protocol (POP)), instant messaging (e.g., extensible messaging and presence protocol (XMPP), Session Initiation Protocol for Instant Messaging and Presence Leveraging Extensions (SIMPLE), Instant Messaging and Presence Service (IMPS)), and/or Short Message Service (SMS), or any other suitable communication protocol, including communication protocols not yet developed as of the filing date of this document.

Audio circuitry 210, speaker 211, and microphone 213 provide an audio interface between a user and device 200. Audio circuitry 210 receives audio data from peripherals interface 218, converts the audio data to an electrical signal, and transmits the electrical signal to speaker 211. Speaker 211 converts the electrical signal to human-audible sound waves. Audio circuitry 210 also receives electrical signals converted by microphone 213 from sound waves. Audio circuitry 210 converts the electrical signal to audio data and transmits the audio data to peripherals interface 218 for processing. Audio data are retrieved from and/or transmitted to memory 202 and/or RF circuitry 208 by peripherals interface 218. In some embodiments, audio circuitry 210 also includes a headset jack (e.g., 312, FIG. 3). The headset jack provides an interface between audio circuitry 210 and removable audio input/output peripherals, such as output-only headphones or a headset with both output (e.g., a headphone for one or both ears) and input (e.g., a microphone).

I/O subsystem 206 couples input/output peripherals on device 200, such as touch screen 212 and other input control devices 216, to peripherals interface 218. I/O subsystem 206 optionally includes display controller 256, optical sensor controller 258, intensity sensor controller 259, haptic feedback controller 261, and one or more input controllers 260 for other input or control devices. The one or more input controllers 260 receive/send electrical signals from/to other input control devices 216. The other input control devices 216 optionally include physical buttons (e.g., push buttons, rocker buttons, etc.), dials, slider switches, joysticks, click wheels, and so forth. In some alternate embodiments, input controller(s) 260 are, optionally, coupled to any (or none) of the following: a keyboard, an infrared port, a USB port, and a pointer device such as a mouse. The one or more buttons (e.g., 308, FIG. 3) optionally include an up/down button for volume control of speaker 211 and/or microphone 213. The one or more buttons optionally include a push button (e.g., 306, FIG. 3).

A quick press of the push button disengages a lock of touch screen 212 or begin a process that uses gestures on the touch screen to unlock the device, as described in U.S. patent application Ser. No. 11/322,549, “Unlocking a Device by Performing Gestures on an Unlock Image,” filed Dec. 23, 2005, U.S. Pat. No. 7,657,849, which is hereby incorporated by reference in its entirety. A longer press of the push button (e.g., 306) turns power to device 200 on or off. The user is able to customize a functionality of one or more of the buttons. Touch screen 212 is used to implement virtual or soft buttons and one or more soft keyboards.

Touch-sensitive display 212 provides an input interface and an output interface between the device and a user. Display controller 256 receives and/or sends electrical signals from/to touch screen 212. Touch screen 212 displays visual output to the user. The visual output includes graphics, text, icons, video, and any combination thereof (collectively termed “graphics”). In some embodiments, some or all of the visual output correspond to user-interface objects.

Touch screen 212 has a touch-sensitive surface, sensor, or set of sensors that accepts input from the user based on haptic and/or tactile contact. Touch screen 212 and display controller 256 (along with any associated modules and/or sets of instructions in memory 202) detect contact (and any movement or breaking of the contact) on touch screen 212 and convert the detected contact into interaction with user-interface objects (e.g., one or more soft keys, icons, web pages, or images) that are displayed on touch screen 212. In an exemplary embodiment, a point of contact between touch screen 212 and the user corresponds to a finger of the user.

Touch screen 212 uses LCD (liquid crystal display) technology, LPD (light emitting polymer display) technology, or LED (light emitting diode) technology, although other display technologies may be used in other embodiments. Touch screen 212 and display controller 256 detect contact and any movement or breaking thereof using any of a plurality of touch sensing technologies now known or later developed, including but not limited to capacitive, resistive, infrared, and surface acoustic wave technologies, as well as other proximity sensor arrays or other elements for determining one or more points of contact with touch screen 212. In an exemplary embodiment, projected mutual capacitance sensing technology is used, such as that found in the iPhone® and iPod Touch® from Apple Inc. of Cupertino, Calif.

A touch-sensitive display in some embodiments of touch screen 212 is analogous to the multi-touch sensitive touchpads described in the following U.S. Pat. Nos. 6,323,846 (Westerman et al.), 6,570,557 (Westerman et al.), and/or 6,677,932 (Westerman), and/or U.S. Patent Publication 2002/0015024A1, each of which is hereby incorporated by reference in its entirety. However, touch screen 212 displays visual output from device 200, whereas touch-sensitive touchpads do not provide visual output.

A touch-sensitive display in some embodiments of touch screen 212 is as described in the following applications: (1) U.S. patent application Ser. No. 11/381,313, “Multipoint Touch Surface Controller,” filed May 2, 2006; (2) U.S. patent application Ser. No. 10/840,862, “Multipoint Touchscreen,” filed May 6, 2004; (3) U.S. patent application Ser. No. 10/903,964, “Gestures For Touch Sensitive Input Devices,” filed Jul. 30, 2004; (4) U.S. patent application Ser. No. 11/048,264, “Gestures For Touch Sensitive Input Devices,” filed Jan. 31, 2005; (5) U.S. patent application Ser. No. 11/038,590, “Mode-Based Graphical User Interfaces For Touch Sensitive Input Devices,” filed Jan. 18, 2005; (6) U.S. patent application Ser. No. 11/228,758, “Virtual Input Device Placement On A Touch Screen User Interface,” filed Sep. 16, 2005; (7) U.S. patent application Ser. No. 11/228,700, “Operation Of A Computer With A Touch Screen Interface,” filed Sep. 16, 2005; (8) U.S. patent application Ser. No. 11/228,737, “Activating Virtual Keys Of A Touch-Screen Virtual Keyboard,” filed Sep. 16, 2005; and (9) U.S. patent application Ser. No. 11/367,749, “Multi-Functional Hand-Held Device,” filed Mar. 3, 2006. All of these applications are incorporated by reference herein in their entirety.

Touch screen 212 has, for example, a video resolution in excess of 100 dpi. In some embodiments, the touch screen has a video resolution of approximately 160 dpi. The user makes contact with touch screen 212 using any suitable object or appendage, such as a stylus, a finger, and so forth. In some embodiments, the user interface is designed to work primarily with finger-based contacts and gestures, which can be less precise than stylus-based input due to the larger area of contact of a finger on the touch screen. In some embodiments, the device translates the rough finger-based input into a precise pointer/cursor position or command for performing the actions desired by the user.

In some embodiments, in addition to the touch screen, device 200 includes a touchpad (not shown) for activating or deactivating particular functions. In some embodiments, the touchpad is a touch-sensitive area of the device that, unlike the touch screen, does not display visual output. The touchpad is a touch-sensitive surface that is separate from touch screen 212 or an extension of the touch-sensitive surface formed by the touch screen.

Device 200 also includes power system 262 for powering the various components. Power system 262 includes a power management system, one or more power sources (e.g., battery, alternating current (AC)), a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator (e.g., a light-emitting diode (LED)) and any other components associated with the generation, management and distribution of power in portable devices.

Device 200 also includes one or more optical sensors 264. FIG. 2A shows an optical sensor coupled to optical sensor controller 258 in I/O subsystem 206. Optical sensor 264 includes charge-coupled device (CCD) or complementary metal-oxide semiconductor (CMOS) phototransistors. Optical sensor 264 receives light from the environment, projected through one or more lenses, and converts the light to data representing an image. In conjunction with imaging module 243 (also called a camera module), optical sensor 264 captures still images or video. In some embodiments, an optical sensor is located on the back of device 200, opposite touch screen display 212 on the front of the device so that the touch screen display is used as a viewfinder for still and/or video image acquisition. In some embodiments, an optical sensor is located on the front of the device so that the user's image is obtained for video conferencing while the user views the other video conference participants on the touch screen display. In some embodiments, the position of optical sensor 264 can be changed by the user (e.g., by rotating the lens and the sensor in the device housing) so that a single optical sensor 264 is used along with the touch screen display for both video conferencing and still and/or video image acquisition.

Device 200 optionally also includes one or more contact intensity sensors 265. FIG. 2A shows a contact intensity sensor coupled to intensity sensor controller 259 in I/O subsystem 206. Contact intensity sensor 265 optionally includes one or more piezoresistive strain gauges, capacitive force sensors, electric force sensors, piezoelectric force sensors, optical force sensors, capacitive touch-sensitive surfaces, or other intensity sensors (e.g., sensors used to measure the force (or pressure) of a contact on a touch-sensitive surface). Contact intensity sensor 265 receives contact intensity information (e.g., pressure information or a proxy for pressure information) from the environment. In some embodiments, at least one contact intensity sensor is collocated with, or proximate to, a touch-sensitive surface (e.g., touch-sensitive display system 212). In some embodiments, at least one contact intensity sensor is located on the back of device 200, opposite touch screen display 212, which is located on the front of device 200.

Device 200 also includes one or more proximity sensors 266. FIG. 2A shows proximity sensor 266 coupled to peripherals interface 218. Alternately, proximity sensor 266 is coupled to input controller 260 in I/O subsystem 206. Proximity sensor 266 is performed as described in U.S. patent application Ser. No. 11/241,839, “Proximity Detector In Handheld Device”; Ser. No. 11/240,788, “Proximity Detector In Handheld Device”; Ser. No. 11/620,702, “Using Ambient Light Sensor To Augment Proximity Sensor Output”; Ser. No. 11/586,862, “Automated Response To And Sensing Of User Activity In Portable Devices”; and Ser. No. 11/638,251, “Methods And Systems For Automatic Configuration Of Peripherals,” which are hereby incorporated by reference in their entirety. In some embodiments, the proximity sensor turns off and disables touch screen 212 when the multifunction device is placed near the user's ear (e.g., when the user is making a phone call).

Device 200 optionally also includes one or more tactile output generators 267. FIG. 2A shows a tactile output generator coupled to haptic feedback controller 261 in I/O subsystem 206. Tactile output generator 267 optionally includes one or more electroacoustic devices such as speakers or other audio components and/or electromechanical devices that convert energy into linear motion such as a motor, solenoid, electroactive polymer, piezoelectric actuator, electrostatic actuator, or other tactile output generating component (e.g., a component that converts electrical signals into tactile outputs on the device). Contact intensity sensor 265 receives tactile feedback generation instructions from haptic feedback module 233 and generates tactile outputs on device 200 that are capable of being sensed by a user of device 200. In some embodiments, at least one tactile output generator is collocated with, or proximate to, a touch-sensitive surface (e.g., touch-sensitive display system 212) and, optionally, generates a tactile output by moving the touch-sensitive surface vertically (e.g., in/out of a surface of device 200) or laterally (e.g., back and forth in the same plane as a surface of device 200). In some embodiments, at least one tactile output generator sensor is located on the back of device 200, opposite touch screen display 212, which is located on the front of device 200.

Device 200 also includes one or more accelerometers 268. FIG. 2A shows accelerometer 268 coupled to peripherals interface 218. Alternately, accelerometer 268 is coupled to an input controller 260 in I/O subsystem 206. Accelerometer 268 performs, for example, as described in U.S. Patent Publication No. 20050190059, “Acceleration-based Theft Detection System for Portable Electronic Devices,” and U.S. Patent Publication No. 20060017692, “Methods And Apparatuses For Operating A Portable Device Based On An Accelerometer,” both of which are incorporated by reference herein in their entirety. In some embodiments, information is displayed on the touch screen display in a portrait view or a landscape view based on an analysis of data received from the one or more accelerometers. Device 200 optionally includes, in addition to accelerometer(s) 268, a magnetometer (not shown) and a GPS (or GLONASS or other global navigation system) receiver (not shown) for obtaining information concerning the location and orientation (e.g., portrait or landscape) of device 200.

In some embodiments, the software components stored in memory 202 include operating system 226, communication module (or set of instructions) 228, contact/motion module (or set of instructions) 230, graphics module (or set of instructions) 232, text input module (or set of instructions) 234, Global Positioning System (GPS) module (or set of instructions) 235, Digital Assistant Client Module 229, and applications (or sets of instructions) 236. Further, memory 202 stores data and models, such as user data and models 231. Furthermore, in some embodiments, memory 202 (FIG. 2A) or 470 (FIG. 4) stores device/global internal state 257, as shown in FIGS. 2A and 4. Device/global internal state 257 includes one or more of: active application state, indicating which applications, if any, are currently active; display state, indicating what applications, views or other information occupy various regions of touch screen display 212; sensor state, including information obtained from the device's various sensors and input control devices 216; and location information concerning the device's location and/or attitude.

Operating system 226 (e.g., Darwin, RTXC, LINUX, UNIX, OS X, iOS, WINDOWS, or an embedded operating system such as VxWorks) includes various software components and/or drivers for controlling and managing general system tasks (e.g., memory management, storage device control, power management, etc.) and facilitates communication between various hardware and software components.

Communication module 228 facilitates communication with other devices over one or more external ports 224 and also includes various software components for handling data received by RF circuitry 208 and/or external port 224. External port 224 (e.g., Universal Serial Bus (USB), FIREWIRE, etc.) is adapted for coupling directly to other devices or indirectly over a network (e.g., the Internet, wireless LAN, etc.). In some embodiments, the external port is a multi-pin (e.g., 30-pin) connector that is the same as, or similar to and/or compatible with, the 30-pin connector used on iPod® (trademark of Apple Inc.) devices.

Contact/motion module 230 optionally detects contact with touch screen 212 (in conjunction with display controller 256) and other touch-sensitive devices (e.g., a touchpad or physical click wheel). Contact/motion module 230 includes various software components for performing various operations related to detection of contact, such as determining if contact has occurred (e.g., detecting a finger-down event), determining an intensity of the contact (e.g., the force or pressure of the contact or a substitute for the force or pressure of the contact), determining if there is movement of the contact and tracking the movement across the touch-sensitive surface (e.g., detecting one or more finger-dragging events), and determining if the contact has ceased (e.g., detecting a finger-up event or a break in contact). Contact/motion module 230 receives contact data from the touch-sensitive surface. Determining movement of the point of contact, which is represented by a series of contact data, optionally includes determining speed (magnitude), velocity (magnitude and direction), and/or an acceleration (a change in magnitude and/or direction) of the point of contact. These operations are, optionally, applied to single contacts (e.g., one finger contacts) or to multiple simultaneous contacts (e.g., “multitouch”/multiple finger contacts). In some embodiments, contact/motion module 230 and display controller 256 detect contact on a touchpad.

In some embodiments, contact/motion module 230 uses a set of one or more intensity thresholds to determine whether an operation has been performed by a user (e.g., to determine whether a user has “clicked” on an icon). In some embodiments, at least a subset of the intensity thresholds are determined in accordance with software parameters (e.g., the intensity thresholds are not determined by the activation thresholds of particular physical actuators and can be adjusted without changing the physical hardware of device 200). For example, a mouse “click” threshold of a trackpad or touch screen display can be set to any of a large range of predefined threshold values without changing the trackpad or touch screen display hardware. Additionally, in some implementations, a user of the device is provided with software settings for adjusting one or more of the set of intensity thresholds (e.g., by adjusting individual intensity thresholds and/or by adjusting a plurality of intensity thresholds at once with a system-level click “intensity” parameter).

Contact/motion module 230 optionally detects a gesture input by a user. Different gestures on the touch-sensitive surface have different contact patterns (e.g., different motions, timings, and/or intensities of detected contacts). Thus, a gesture is, optionally, detected by detecting a particular contact pattern. For example, detecting a finger tap gesture includes detecting a finger-down event followed by detecting a finger-up (liftoff) event at the same position (or substantially the same position) as the finger-down event (e.g., at the position of an icon). As another example, detecting a finger swipe gesture on the touch-sensitive surface includes detecting a finger-down event followed by detecting one or more finger-dragging events, and subsequently followed by detecting a finger-up (liftoff) event.

Graphics module 232 includes various known software components for rendering and displaying graphics on touch screen 212 or other display, including components for changing the visual impact (e.g., brightness, transparency, saturation, contrast, or other visual property) of graphics that are displayed. As used herein, the term “graphics” includes any object that can be displayed to a user, including, without limitation, text, web pages, icons (such as user-interface objects including soft keys), digital images, videos, animations, and the like.

In some embodiments, graphics module 232 stores data representing graphics to be used. Each graphic is, optionally, assigned a corresponding code. Graphics module 232 receives, from applications etc., one or more codes specifying graphics to be displayed along with, if necessary, coordinate data and other graphic property data, and then generates screen image data to output to display controller 256.

Haptic feedback module 233 includes various software components for generating instructions used by tactile output generator(s) 267 to produce tactile outputs at one or more locations on device 200 in response to user interactions with device 200.

Text input module 234, which is, in some examples, a component of graphics module 232, provides soft keyboards for entering text in various applications (e.g., contacts 237, email 240, IM 241, browser 247, and any other application that needs text input).

GPS module 235 determines the location of the device and provides this information for use in various applications (e.g., to telephone 238 for use in location-based dialing; to camera 243 as picture/video metadata; and to applications that provide location-based services such as weather widgets, local yellow page widgets, and map/navigation widgets).

Digital assistant client module 229 includes various client-side digital assistant instructions to provide the client-side functionalities of the digital assistant. For example, digital assistant client module 229 is capable of accepting voice input (e.g., speech input), text input, touch input, and/or gestural input through various user interfaces (e.g., microphone 213, accelerometer(s) 268, touch-sensitive display system 212, optical sensor(s) 264, other input control devices 216, etc.) of portable multifunction device 200. Digital assistant client module 229 is also capable of providing output in audio (e.g., speech output), visual, and/or tactile forms through various output interfaces (e.g., speaker 211, touch-sensitive display system 212, tactile output generator(s) 267, etc.) of portable multifunction device 200. For example, output is provided as voice, sound, alerts, text messages, menus, graphics, videos, animations, vibrations, and/or combinations of two or more of the above. During operation, digital assistant client module 229 communicates with DA server 106 using RF circuitry 208.

User data and models 231 include various data associated with the user (e.g., user-specific vocabulary data, user preference data, user-specified name pronunciations, data from the user's electronic address book, to-do lists, shopping lists, etc.) to provide the client-side functionalities of the digital assistant. Further, user data and models 231 include various models (e.g., speech recognition models, statistical language models, natural language processing models, ontology, task flow models, service models, etc.) for processing user input and determining user intent.

In some examples, digital assistant client module 229 utilizes the various sensors, subsystems, and peripheral devices of portable multifunction device 200 to gather additional information from the surrounding environment of the portable multifunction device 200 to establish a context associated with a user, the current user interaction, and/or the current user input. In some examples, digital assistant client module 229 provides the contextual information or a subset thereof with the user input to DA server 106 to help infer the user's intent. In some examples, the digital assistant also uses the contextual information to determine how to prepare and deliver outputs to the user. Contextual information is referred to as context data.

In some examples, the contextual information that accompanies the user input includes sensor information, e.g., lighting, ambient noise, ambient temperature, images or videos of the surrounding environment, etc. In some examples, the contextual information can also include the physical state of the device, e.g., device orientation, device location, device temperature, power level, speed, acceleration, motion patterns, cellular signals strength, etc. In some examples, information related to the software state of DA server 106, e.g., running processes, installed programs, past and present network activities, background services, error logs, resources usage, etc., and of portable multifunction device 200 is provided to DA server 106 as contextual information associated with a user input.

In some examples, the digital assistant client module 229 selectively provides information (e.g., user data 231) stored on the portable multifunction device 200 in response to requests from DA server 106. In some examples, digital assistant client module 229 also elicits additional input from the user via a natural language dialogue or other user interfaces upon request by DA server 106. Digital assistant client module 229 passes the additional input to DA server 106 to help DA server 106 in intent deduction and/or fulfillment of the user's intent expressed in the user request.

A more detailed description of a digital assistant is described below with reference to FIGS. 7A-7C. It should be recognized that digital assistant client module 229 can include any number of the sub-modules of digital assistant module 726 described below.

Applications 236 include the following modules (or sets of instructions), or a subset or superset thereof:

-   -   Contacts module 237 (sometimes called an address book or contact         list);     -   Telephone module 238;     -   Video conference module 239;     -   E-mail client module 240;     -   Instant messaging (IM) module 241;     -   Workout support module 242;     -   Camera module 243 for still and/or video images;     -   Image management module 244;     -   Video player module;     -   Music player module;     -   Browser module 247;     -   Calendar module 248;     -   Widget modules 249, which includes, in some examples, one or         more of: weather widget 249-1, stocks widget 249-2, calculator         widget 249-3, alarm clock widget 249-4, dictionary widget 249-5,         and other widgets obtained by the user, as well as user-created         widgets 249-6;     -   Widget creator module 250 for making user-created widgets 249-6;     -   Search module 251;     -   Video and music player module 252, which merges video player         module and music player module;     -   Notes module 253;     -   Map module 254; and/or     -   Online video module 255.

Examples of other applications 236 that are stored in memory 202 include other word processing applications, other image editing applications, drawing applications, presentation applications, JAVA-enabled applications, encryption, digital rights management, voice recognition, and voice replication.

In conjunction with touch screen 212, display controller 256, contact/motion module 230, graphics module 232, and text input module 234, contacts module 237 are used to manage an address book or contact list (e.g., stored in application internal state 292 of contacts module 237 in memory 202 or memory 470), including: adding name(s) to the address book; deleting name(s) from the address book; associating telephone number(s), e-mail address(es), physical address(es) or other information with a name; associating an image with a name; categorizing and sorting names; providing telephone numbers or e-mail addresses to initiate and/or facilitate communications by telephone 238, video conference module 239, e-mail 240, or IM 241; and so forth.

In conjunction with RF circuitry 208, audio circuitry 210, speaker 211, microphone 213, touch screen 212, display controller 256, contact/motion module 230, graphics module 232, and text input module 234, telephone module 238 are used to enter a sequence of characters corresponding to a telephone number, access one or more telephone numbers in contacts module 237, modify a telephone number that has been entered, dial a respective telephone number, conduct a conversation, and disconnect or hang up when the conversation is completed. As noted above, the wireless communication uses any of a plurality of communications standards, protocols, and technologies.

In conjunction with RF circuitry 208, audio circuitry 210, speaker 211, microphone 213, touch screen 212, display controller 256, optical sensor 264, optical sensor controller 258, contact/motion module 230, graphics module 232, text input module 234, contacts module 237, and telephone module 238, video conference module 239 includes executable instructions to initiate, conduct, and terminate a video conference between a user and one or more other participants in accordance with user instructions.

In conjunction with RF circuitry 208, touch screen 212, display controller 256, contact/motion module 230, graphics module 232, and text input module 234, e-mail client module 240 includes executable instructions to create, send, receive, and manage e-mail in response to user instructions. In conjunction with image management module 244, e-mail client module 240 makes it very easy to create and send e-mails with still or video images taken with camera module 243.

In conjunction with RF circuitry 208, touch screen 212, display controller 256, contact/motion module 230, graphics module 232, and text input module 234, the instant messaging module 241 includes executable instructions to enter a sequence of characters corresponding to an instant message, to modify previously entered characters, to transmit a respective instant message (for example, using a Short Message Service (SMS) or Multimedia Message Service (MMS) protocol for telephony-based instant messages or using XMPP, SIMPLE, or IMPS for Internet-based instant messages), to receive instant messages, and to view received instant messages. In some embodiments, transmitted and/or received instant messages include graphics, photos, audio files, video files and/or other attachments as are supported in an MMS and/or an Enhanced Messaging Service (EMS). As used herein, “instant messaging” refers to both telephony-based messages (e.g., messages sent using SMS or MMS) and Internet-based messages (e.g., messages sent using XMPP, SIMPLE, or IMPS).

In conjunction with RF circuitry 208, touch screen 212, display controller 256, contact/motion module 230, graphics module 232, text input module 234, GPS module 235, map module 254, and music player module, workout support module 242 includes executable instructions to create workouts (e.g., with time, distance, and/or calorie burning goals); communicate with workout sensors (sports devices); receive workout sensor data; calibrate sensors used to monitor a workout; select and play music for a workout; and display, store, and transmit workout data.

In conjunction with touch screen 212, display controller 256, optical sensor(s) 264, optical sensor controller 258, contact/motion module 230, graphics module 232, and image management module 244, camera module 243 includes executable instructions to capture still images or video (including a video stream) and store them into memory 202, modify characteristics of a still image or video, or delete a still image or video from memory 202.

In conjunction with touch screen 212, display controller 256, contact/motion module 230, graphics module 232, text input module 234, and camera module 243, image management module 244 includes executable instructions to arrange, modify (e.g., edit), or otherwise manipulate, label, delete, present (e.g., in a digital slide show or album), and store still and/or video images.

In conjunction with RF circuitry 208, touch screen 212, display controller 256, contact/motion module 230, graphics module 232, and text input module 234, browser module 247 includes executable instructions to browse the Internet in accordance with user instructions, including searching, linking to, receiving, and displaying web pages or portions thereof, as well as attachments and other files linked to web pages.

In conjunction with RF circuitry 208, touch screen 212, display controller 256, contact/motion module 230, graphics module 232, text input module 234, e-mail client module 240, and browser module 247, calendar module 248 includes executable instructions to create, display, modify, and store calendars and data associated with calendars (e.g., calendar entries, to-do lists, etc.) in accordance with user instructions.

In conjunction with RF circuitry 208, touch screen 212, display controller 256, contact/motion module 230, graphics module 232, text input module 234, and browser module 247, widget modules 249 are mini-applications that can be downloaded and used by a user (e.g., weather widget 249-1, stocks widget 249-2, calculator widget 249-3, alarm clock widget 249-4, and dictionary widget 249-5) or created by the user (e.g., user-created widget 249-6). In some embodiments, a widget includes an HTML (Hypertext Markup Language) file, a CSS (Cascading Style Sheets) file, and a JavaScript file. In some embodiments, a widget includes an XML (Extensible Markup Language) file and a JavaScript file (e.g., Yahoo! Widgets).

In conjunction with RF circuitry 208, touch screen 212, display controller 256, contact/motion module 230, graphics module 232, text input module 234, and browser module 247, the widget creator module 250 are used by a user to create widgets (e.g., turning a user-specified portion of a web page into a widget).

In conjunction with touch screen 212, display controller 256, contact/motion module 230, graphics module 232, and text input module 234, search module 251 includes executable instructions to search for text, music, sound, image, video, and/or other files in memory 202 that match one or more search criteria (e.g., one or more user-specified search terms) in accordance with user instructions.

In conjunction with touch screen 212, display controller 256, contact/motion module 230, graphics module 232, audio circuitry 210, speaker 211, RF circuitry 208, and browser module 247, video and music player module 252 includes executable instructions that allow the user to download and play back recorded music and other sound files stored in one or more file formats, such as MP3 or AAC files, and executable instructions to display, present, or otherwise play back videos (e.g., on touch screen 212 or on an external, connected display via external port 224). In some embodiments, device 200 optionally includes the functionality of an MP3 player, such as an iPod (trademark of Apple Inc.).

In conjunction with touch screen 212, display controller 256, contact/motion module 230, graphics module 232, and text input module 234, notes module 253 includes executable instructions to create and manage notes, to-do lists, and the like in accordance with user instructions.

In conjunction with RF circuitry 208, touch screen 212, display controller 256, contact/motion module 230, graphics module 232, text input module 234, GPS module 235, and browser module 247, map module 254 are used to receive, display, modify, and store maps and data associated with maps (e.g., driving directions, data on stores and other points of interest at or near a particular location, and other location-based data) in accordance with user instructions.

In conjunction with touch screen 212, display controller 256, contact/motion module 230, graphics module 232, audio circuitry 210, speaker 211, RF circuitry 208, text input module 234, e-mail client module 240, and browser module 247, online video module 255 includes instructions that allow the user to access, browse, receive (e.g., by streaming and/or download), play back (e.g., on the touch screen or on an external, connected display via external port 224), send an e-mail with a link to a particular online video, and otherwise manage online videos in one or more file formats, such as H.264. In some embodiments, instant messaging module 241, rather than e-mail client module 240, is used to send a link to a particular online video. Additional description of the online video application can be found in U.S. Provisional Patent Application No. 60/936,562, “Portable Multifunction Device, Method, and Graphical User Interface for Playing Online Videos,” filed Jun. 20, 2007, and U.S. patent application Ser. No. 11/968,067, “Portable Multifunction Device, Method, and Graphical User Interface for Playing Online Videos,” filed Dec. 31, 2007, the contents of which are hereby incorporated by reference in their entirety.

Each of the above-identified modules and applications corresponds to a set of executable instructions for performing one or more functions described above and the methods described in this application (e.g., the computer-implemented methods and other information processing methods described herein). These modules (e.g., sets of instructions) need not be implemented as separate software programs, procedures, or modules, and thus various subsets of these modules can be combined or otherwise rearranged in various embodiments. For example, video player module can be combined with music player module into a single module (e.g., video and music player module 252, FIG. 2A). In some embodiments, memory 202 stores a subset of the modules and data structures identified above. Furthermore, memory 202 stores additional modules and data structures not described above.

In some embodiments, device 200 is a device where operation of a predefined set of functions on the device is performed exclusively through a touch screen and/or a touchpad. By using a touch screen and/or a touchpad as the primary input control device for operation of device 200, the number of physical input control devices (such as push buttons, dials, and the like) on device 200 is reduced.

The predefined set of functions that are performed exclusively through a touch screen and/or a touchpad optionally include navigation between user interfaces. In some embodiments, the touchpad, when touched by the user, navigates device 200 to a main, home, or root menu from any user interface that is displayed on device 200. In such embodiments, a “menu button” is implemented using a touchpad. In some other embodiments, the menu button is a physical push button or other physical input control device instead of a touchpad.

FIG. 2B is a block diagram illustrating exemplary components for event handling in accordance with some embodiments. In some embodiments, memory 202 (FIG. 2A) or 470 (FIG. 4) includes event sorter 270 (e.g., in operating system 226) and a respective application 236-1 (e.g., any of the aforementioned applications 237-251, 255, 480-490).

Event sorter 270 receives event information and determines the application 236-1 and application view 291 of application 236-1 to which to deliver the event information. Event sorter 270 includes event monitor 271 and event dispatcher module 274. In some embodiments, application 236-1 includes application internal state 292, which indicates the current application view(s) displayed on touch-sensitive display 212 when the application is active or executing. In some embodiments, device/global internal state 257 is used by event sorter 270 to determine which application(s) is (are) currently active, and application internal state 292 is used by event sorter 270 to determine application views 291 to which to deliver event information.

In some embodiments, application internal state 292 includes additional information, such as one or more of: resume information to be used when application 236-1 resumes execution, user interface state information that indicates information being displayed or that is ready for display by application 236-1, a state queue for enabling the user to go back to a prior state or view of application 236-1, and a redo/undo queue of previous actions taken by the user.

Event monitor 271 receives event information from peripherals interface 218. Event information includes information about a sub-event (e.g., a user touch on touch-sensitive display 212, as part of a multi-touch gesture). Peripherals interface 218 transmits information it receives from I/O subsystem 206 or a sensor, such as proximity sensor 266, accelerometer(s) 268, and/or microphone 213 (through audio circuitry 210). Information that peripherals interface 218 receives from I/O subsystem 206 includes information from touch-sensitive display 212 or a touch-sensitive surface.

In some embodiments, event monitor 271 sends requests to the peripherals interface 218 at predetermined intervals. In response, peripherals interface 218 transmits event information. In other embodiments, peripherals interface 218 transmits event information only when there is a significant event (e.g., receiving an input above a predetermined noise threshold and/or for more than a predetermined duration).

In some embodiments, event sorter 270 also includes a hit view determination module 272 and/or an active event recognizer determination module 273.

Hit view determination module 272 provides software procedures for determining where a sub-event has taken place within one or more views when touch-sensitive display 212 displays more than one view. Views are made up of controls and other elements that a user can see on the display.

Another aspect of the user interface associated with an application is a set of views, sometimes herein called application views or user interface windows, in which information is displayed and touch-based gestures occur. The application views (of a respective application) in which a touch is detected correspond to programmatic levels within a programmatic or view hierarchy of the application. For example, the lowest level view in which a touch is detected is called the hit view, and the set of events that are recognized as proper inputs is determined based, at least in part, on the hit view of the initial touch that begins a touch-based gesture.

Hit view determination module 272 receives information related to sub events of a touch-based gesture. When an application has multiple views organized in a hierarchy, hit view determination module 272 identifies a hit view as the lowest view in the hierarchy which should handle the sub-event. In most circumstances, the hit view is the lowest level view in which an initiating sub-event occurs (e.g., the first sub-event in the sequence of sub-events that form an event or potential event). Once the hit view is identified by the hit view determination module 272, the hit view typically receives all sub-events related to the same touch or input source for which it was identified as the hit view.

Active event recognizer determination module 273 determines which view or views within a view hierarchy should receive a particular sequence of sub-events. In some embodiments, active event recognizer determination module 273 determines that only the hit view should receive a particular sequence of sub-events. In other embodiments, active event recognizer determination module 273 determines that all views that include the physical location of a sub-event are actively involved views, and therefore determines that all actively involved views should receive a particular sequence of sub-events. In other embodiments, even if touch sub-events were entirely confined to the area associated with one particular view, views higher in the hierarchy would still remain as actively involved views.

Event dispatcher module 274 dispatches the event information to an event recognizer (e.g., event recognizer 280). In embodiments including active event recognizer determination module 273, event dispatcher module 274 delivers the event information to an event recognizer determined by active event recognizer determination module 273. In some embodiments, event dispatcher module 274 stores in an event queue the event information, which is retrieved by a respective event receiver 282.

In some embodiments, operating system 226 includes event sorter 270. Alternatively, application 236-1 includes event sorter 270. In yet other embodiments, event sorter 270 is a stand-alone module, or a part of another module stored in memory 202, such as contact/motion module 230.

In some embodiments, application 236-1 includes a plurality of event handlers 290 and one or more application views 291, each of which includes instructions for handling touch events that occur within a respective view of the application's user interface. Each application view 291 of the application 236-1 includes one or more event recognizers 280. Typically, a respective application view 291 includes a plurality of event recognizers 280. In other embodiments, one or more of event recognizers 280 are part of a separate module, such as a user interface kit (not shown) or a higher level object from which application 236-1 inherits methods and other properties. In some embodiments, a respective event handler 290 includes one or more of: data updater 276, object updater 277, GUI updater 278, and/or event data 279 received from event sorter 270. Event handler 290 utilizes or calls data updater 276, object updater 277, or GUI updater 278 to update the application internal state 292. Alternatively, one or more of the application views 291 include one or more respective event handlers 290. Also, in some embodiments, one or more of data updater 276, object updater 277, and GUI updater 278 are included in a respective application view 291.

A respective event recognizer 280 receives event information (e.g., event data 279) from event sorter 270 and identifies an event from the event information. Event recognizer 280 includes event receiver 282 and event comparator 284. In some embodiments, event recognizer 280 also includes at least a subset of: metadata 283, and event delivery instructions 288 (which include sub-event delivery instructions).

Event receiver 282 receives event information from event sorter 270. The event information includes information about a sub-event, for example, a touch or a touch movement. Depending on the sub-event, the event information also includes additional information, such as location of the sub-event. When the sub-event concerns motion of a touch, the event information also includes speed and direction of the sub-event. In some embodiments, events include rotation of the device from one orientation to another (e.g., from a portrait orientation to a landscape orientation, or vice versa), and the event information includes corresponding information about the current orientation (also called device attitude) of the device.

Event comparator 284 compares the event information to predefined event or sub-event definitions and, based on the comparison, determines an event or sub event, or determines or updates the state of an event or sub-event. In some embodiments, event comparator 284 includes event definitions 286. Event definitions 286 contain definitions of events (e.g., predefined sequences of sub-events), for example, event 1 (287-1), event 2 (287-2), and others. In some embodiments, sub-events in an event (287) include, for example, touch begin, touch end, touch movement, touch cancellation, and multiple touching. In one example, the definition for event 1 (287-1) is a double tap on a displayed object. The double tap, for example, comprises a first touch (touch begin) on the displayed object for a predetermined phase, a first liftoff (touch end) for a predetermined phase, a second touch (touch begin) on the displayed object for a predetermined phase, and a second liftoff (touch end) for a predetermined phase. In another example, the definition for event 2 (287-2) is a dragging on a displayed object. The dragging, for example, comprises a touch (or contact) on the displayed object for a predetermined phase, a movement of the touch across touch-sensitive display 212, and liftoff of the touch (touch end). In some embodiments, the event also includes information for one or more associated event handlers 290.

In some embodiments, event definition 287 includes a definition of an event for a respective user-interface object. In some embodiments, event comparator 284 performs a hit test to determine which user-interface object is associated with a sub-event. For example, in an application view in which three user-interface objects are displayed on touch-sensitive display 212, when a touch is detected on touch-sensitive display 212, event comparator 284 performs a hit test to determine which of the three user-interface objects is associated with the touch (sub-event). If each displayed object is associated with a respective event handler 290, the event comparator uses the result of the hit test to determine which event handler 290 should be activated. For example, event comparator 284 selects an event handler associated with the sub-event and the object triggering the hit test.

In some embodiments, the definition for a respective event (287) also includes delayed actions that delay delivery of the event information until after it has been determined whether the sequence of sub-events does or does not correspond to the event recognizer's event type.

When a respective event recognizer 280 determines that the series of sub-events do not match any of the events in event definitions 286, the respective event recognizer 280 enters an event impossible, event failed, or event ended state, after which it disregards subsequent sub-events of the touch-based gesture. In this situation, other event recognizers, if any, that remain active for the hit view continue to track and process sub-events of an ongoing touch-based gesture.

In some embodiments, a respective event recognizer 280 includes metadata 283 with configurable properties, flags, and/or lists that indicate how the event delivery system should perform sub-event delivery to actively involved event recognizers. In some embodiments, metadata 283 includes configurable properties, flags, and/or lists that indicate how event recognizers interact, or are enabled to interact, with one another. In some embodiments, metadata 283 includes configurable properties, flags, and/or lists that indicate whether sub-events are delivered to varying levels in the view or programmatic hierarchy.

In some embodiments, a respective event recognizer 280 activates event handler 290 associated with an event when one or more particular sub-events of an event are recognized. In some embodiments, a respective event recognizer 280 delivers event information associated with the event to event handler 290. Activating an event handler 290 is distinct from sending (and deferred sending) sub-events to a respective hit view. In some embodiments, event recognizer 280 throws a flag associated with the recognized event, and event handler 290 associated with the flag catches the flag and performs a predefined process.

In some embodiments, event delivery instructions 288 include sub-event delivery instructions that deliver event information about a sub-event without activating an event handler. Instead, the sub-event delivery instructions deliver event information to event handlers associated with the series of sub-events or to actively involved views. Event handlers associated with the series of sub-events or with actively involved views receive the event information and perform a predetermined process.

In some embodiments, data updater 276 creates and updates data used in application 236-1. For example, data updater 276 updates the telephone number used in contacts module 237, or stores a video file used in video player module. In some embodiments, object updater 277 creates and updates objects used in application 236-1. For example, object updater 277 creates a new user-interface object or updates the position of a user-interface object. GUI updater 278 updates the GUI. For example, GUI updater 278 prepares display information and sends it to graphics module 232 for display on a touch-sensitive display.

In some embodiments, event handler(s) 290 includes or has access to data updater 276, object updater 277, and GUI updater 278. In some embodiments, data updater 276, object updater 277, and GUI updater 278 are included in a single module of a respective application 236-1 or application view 291. In other embodiments, they are included in two or more software modules.

It shall be understood that the foregoing discussion regarding event handling of user touches on touch-sensitive displays also applies to other forms of user inputs to operate multifunction devices 200 with input devices, not all of which are initiated on touch screens. For example, mouse movement and mouse button presses, optionally coordinated with single or multiple keyboard presses or holds; contact movements such as taps, drags, scrolls, etc. on touchpads; pen stylus inputs; movement of the device; oral instructions; detected eye movements; biometric inputs; and/or any combination thereof are optionally utilized as inputs corresponding to sub-events which define an event to be recognized.

FIG. 3 illustrates a portable multifunction device 200 having a touch screen 212 in accordance with some embodiments. The touch screen optionally displays one or more graphics within user interface (UI) 300. In this embodiment, as well as others described below, a user is enabled to select one or more of the graphics by making a gesture on the graphics, for example, with one or more fingers 302 (not drawn to scale in the figure) or one or more styluses 303 (not drawn to scale in the figure). In some embodiments, selection of one or more graphics occurs when the user breaks contact with the one or more graphics. In some embodiments, the gesture optionally includes one or more taps, one or more swipes (from left to right, right to left, upward and/or downward), and/or a rolling of a finger (from right to left, left to right, upward and/or downward) that has made contact with device 200. In some implementations or circumstances, inadvertent contact with a graphic does not select the graphic. For example, a swipe gesture that sweeps over an application icon optionally does not select the corresponding application when the gesture corresponding to selection is a tap.

Device 200 also includes one or more physical buttons, such as “home” or menu button 304. As described previously, menu button 304 is used to navigate to any application 236 in a set of applications that is executed on device 200. Alternatively, in some embodiments, the menu button is implemented as a soft key in a GUI displayed on touch screen 212.

In one embodiment, device 200 includes touch screen 212, menu button 304, push button 306 for powering the device on/off and locking the device, volume adjustment button(s) 308, subscriber identity module (SIM) card slot 310, headset jack 312, and docking/charging external port 224. Push button 306 is, optionally, used to turn the power on/off on the device by depressing the button and holding the button in the depressed state for a predefined time interval; to lock the device by depressing the button and releasing the button before the predefined time interval has elapsed; and/or to unlock the device or initiate an unlock process. In an alternative embodiment, device 200 also accepts verbal input for activation or deactivation of some functions through microphone 213. Device 200 also, optionally, includes one or more contact intensity sensors 265 for detecting intensity of contacts on touch screen 212 and/or one or more tactile output generators 267 for generating tactile outputs for a user of device 200.

FIG. 4 is a block diagram of an exemplary multifunction device with a display and a touch-sensitive surface in accordance with some embodiments. Device 400 need not be portable. In some embodiments, device 400 is a laptop computer, a desktop computer, a tablet computer, a multimedia player device, a navigation device, an educational device (such as a child's learning toy), a gaming system, or a control device (e.g., a home or industrial controller). Device 400 typically includes one or more processing units (CPUs) 410, one or more network or other communications interfaces 460, memory 470, and one or more communication buses 420 for interconnecting these components. Communication buses 420 optionally include circuitry (sometimes called a chipset) that interconnects and controls communications between system components. Device 400 includes input/output (I/O) interface 430 comprising display 440, which is typically a touch screen display. I/O interface 430 also optionally includes a keyboard and/or mouse (or other pointing device) 450 and touchpad 455, tactile output generator 457 for generating tactile outputs on device 400 (e.g., similar to tactile output generator(s) 267 described above with reference to FIG. 2A), sensors 459 (e.g., optical, acceleration, proximity, touch-sensitive, and/or contact intensity sensors similar to contact intensity sensor(s) 265 described above with reference to FIG. 2A). Memory 470 includes high-speed random access memory, such as DRAM, SRAM, DDR RAM, or other random access solid state memory devices; and optionally includes non-volatile memory, such as one or more magnetic disk storage devices, optical disk storage devices, flash memory devices, or other non-volatile solid state storage devices. Memory 470 optionally includes one or more storage devices remotely located from CPU(s) 410. In some embodiments, memory 470 stores programs, modules, and data structures analogous to the programs, modules, and data structures stored in memory 202 of portable multifunction device 200 (FIG. 2A), or a subset thereof. Furthermore, memory 470 optionally stores additional programs, modules, and data structures not present in memory 202 of portable multifunction device 200. For example, memory 470 of device 400 optionally stores drawing module 480, presentation module 482, word processing module 484, website creation module 486, disk authoring module 488, and/or spreadsheet module 490, while memory 202 of portable multifunction device 200 (FIG. 2A) optionally does not store these modules.

Each of the above-identified elements in FIG. 4 is, in some examples, stored in one or more of the previously mentioned memory devices. Each of the above-identified modules corresponds to a set of instructions for performing a function described above. The above-identified modules or programs (e.g., sets of instructions) need not be implemented as separate software programs, procedures, or modules, and thus various subsets of these modules are combined or otherwise rearranged in various embodiments. In some embodiments, memory 470 stores a subset of the modules and data structures identified above. Furthermore, memory 470 stores additional modules and data structures not described above.

Attention is now directed towards embodiments of user interfaces that can be implemented on, for example, portable multifunction device 200.

FIG. 5A illustrates an exemplary user interface for a menu of applications on portable multifunction device 200 in accordance with some embodiments. Similar user interfaces are implemented on device 400. In some embodiments, user interface 500 includes the following elements, or a subset or superset thereof:

Signal strength indicator(s) 502 for wireless communication(s), such as cellular and Wi-Fi signals;

-   -   Time 504;     -   Bluetooth indicator 505;     -   Battery status indicator 506;     -   Tray 508 with icons for frequently used applications, such as:         -   Icon 516 for telephone module 238, labeled “Phone,” which             optionally includes an indicator 514 of the number of missed             calls or voicemail messages;         -   Icon 518 for e-mail client module 240, labeled “Mail,” which             optionally includes an indicator 510 of the number of unread             e-mails;         -   Icon 520 for browser module 247, labeled “Browser;” and         -   Icon 522 for video and music player module 252, also             referred to as iPod (trademark of Apple Inc.) module 252,             labeled “iPod;” and     -   Icons for other applications, such as:         -   Icon 524 for IM module 241, labeled “Messages;”         -   Icon 526 for calendar module 248, labeled “Calendar;”         -   Icon 528 for image management module 244, labeled “Photos;”         -   Icon 530 for camera module 243, labeled “Camera;”         -   Icon 532 for online video module 255, labeled “Online             Video;”         -   Icon 534 for stocks widget 249-2, labeled “Stocks;”         -   Icon 536 for map module 254, labeled “Maps;”         -   Icon 538 for weather widget 249-1, labeled “Weather;”         -   Icon 540 for alarm clock widget 249-4, labeled “Clock;”         -   Icon 542 for workout support module 242, labeled “Workout             Support;”         -   Icon 544 for notes module 253, labeled “Notes;” and         -   Icon 546 for a settings application or module, labeled             “Settings,” which provides access to settings for device 200             and its various applications 236.

It should be noted that the icon labels illustrated in FIG. 5A are merely exemplary. For example, icon 522 for video and music player module 252 is optionally labeled “Music” or “Music Player.” Other labels are, optionally, used for various application icons. In some embodiments, a label for a respective application icon includes a name of an application corresponding to the respective application icon. In some embodiments, a label for a particular application icon is distinct from a name of an application corresponding to the particular application icon.

FIG. 5B illustrates an exemplary user interface on a device (e.g., device 400, FIG. 4) with a touch-sensitive surface 551 (e.g., a tablet or touchpad 455, FIG. 4) that is separate from the display 550 (e.g., touch screen display 212). Device 400 also, optionally, includes one or more contact intensity sensors (e.g., one or more of sensors 457) for detecting intensity of contacts on touch-sensitive surface 551 and/or one or more tactile output generators 459 for generating tactile outputs for a user of device 400.

Although some of the examples which follow will be given with reference to inputs on touch screen display 212 (where the touch-sensitive surface and the display are combined), in some embodiments, the device detects inputs on a touch-sensitive surface that is separate from the display, as shown in FIG. 5B. In some embodiments, the touch-sensitive surface (e.g., 551 in FIG. 5B) has a primary axis (e.g., 552 in FIG. 5B) that corresponds to a primary axis (e.g., 553 in FIG. 5B) on the display (e.g., 550). In accordance with these embodiments, the device detects contacts (e.g., 560 and 562 in FIG. 5B) with the touch-sensitive surface 551 at locations that correspond to respective locations on the display (e.g., in FIG. 5B, 560 corresponds to 568 and 562 corresponds to 570). In this way, user inputs (e.g., contacts 560 and 562, and movements thereof) detected by the device on the touch-sensitive surface (e.g., 551 in FIG. 5B) are used by the device to manipulate the user interface on the display (e.g., 550 in FIG. 5B) of the multifunction device when the touch-sensitive surface is separate from the display. It should be understood that similar methods are, optionally, used for other user interfaces described herein.

Additionally, while the following examples are given primarily with reference to finger inputs (e.g., finger contacts, finger tap gestures, finger swipe gestures), it should be understood that, in some embodiments, one or more of the finger inputs are replaced with input from another input device (e.g., a mouse-based input or stylus input). For example, a swipe gesture is, optionally, replaced with a mouse click (e.g., instead of a contact) followed by movement of the cursor along the path of the swipe (e.g., instead of movement of the contact). As another example, a tap gesture is, optionally, replaced with a mouse click while the cursor is located over the location of the tap gesture (e.g., instead of detection of the contact followed by ceasing to detect the contact). Similarly, when multiple user inputs are simultaneously detected, it should be understood that multiple computer mice are, optionally, used simultaneously, or a mouse and finger contacts are, optionally, used simultaneously.

FIG. 6A illustrates exemplary personal electronic device 600. Device 600 includes body 602. In some embodiments, device 600 includes some or all of the features described with respect to devices 200 and 400 (e.g., FIGS. 2A-4). In some embodiments, device 600 has touch-sensitive display screen 604, hereafter touch screen 604. Alternatively, or in addition to touch screen 604, device 600 has a display and a touch-sensitive surface. As with devices 200 and 400, in some embodiments, touch screen 604 (or the touch-sensitive surface) has one or more intensity sensors for detecting intensity of contacts (e.g., touches) being applied. The one or more intensity sensors of touch screen 604 (or the touch-sensitive surface) provide output data that represents the intensity of touches. The user interface of device 600 responds to touches based on their intensity, meaning that touches of different intensities can invoke different user interface operations on device 600.

Techniques for detecting and processing touch intensity are found, for example, in related applications: International Patent Application Serial No. PCT/US2013/040061, titled “Device, Method, and Graphical User Interface for Displaying User Interface Objects Corresponding to an Application,” filed May 8, 2013, and International Patent Application Serial No. PCT/US2013/069483, titled “Device, Method, and Graphical User Interface for Transitioning Between Touch Input to Display Output Relationships,” filed Nov. 11, 2013, each of which is hereby incorporated by reference in their entirety.

In some embodiments, device 600 has one or more input mechanisms 606 and 608. Input mechanisms 606 and 608, if included, are physical. Examples of physical input mechanisms include push buttons and rotatable mechanisms. In some embodiments, device 600 has one or more attachment mechanisms. Such attachment mechanisms, if included, can permit attachment of device 600 with, for example, hats, eyewear, earrings, necklaces, shirts, jackets, bracelets, watch straps, chains, trousers, belts, shoes, purses, backpacks, and so forth. These attachment mechanisms permit device 600 to be worn by a user.

FIG. 6B depicts exemplary personal electronic device 600. In some embodiments, device 600 includes some or all of the components described with respect to FIGS. 2A, 2B, and 4. Device 600 has bus 612 that operatively couples I/O section 614 with one or more computer processors 616 and memory 618. I/O section 614 is connected to display 604, which can have touch-sensitive component 622 and, optionally, touch-intensity sensitive component 624. In addition, I/O section 614 is connected with communication unit 630 for receiving application and operating system data, using Wi-Fi, Bluetooth, near field communication (NFC), cellular, and/or other wireless communication techniques. Device 600 includes input mechanisms 606 and/or 608. Input mechanism 606 is a rotatable input device or a depressible and rotatable input device, for example. Input mechanism 608 is a button, in some examples.

Input mechanism 608 is a microphone, in some examples. Personal electronic device 600 includes, for example, various sensors, such as GPS sensor 632, accelerometer 634, directional sensor 640 (e.g., compass), gyroscope 636, motion sensor 638, and/or a combination thereof, all of which are operatively connected to I/O section 614.

Memory 618 of personal electronic device 600 is a non-transitory computer-readable storage medium, for storing computer-executable instructions, which, when executed by one or more computer processors 616, for example, cause the computer processors to perform the techniques and processes described below. The computer-executable instructions, for example, are also stored and/or transported within any non-transitory computer-readable storage medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. Personal electronic device 600 is not limited to the components and configuration of FIG. 6B, but can include other or additional components in multiple configurations.

As used here, the term “affordance” refers to a user-interactive graphical user interface object that is, for example, displayed on the display screen of devices 200, 400, 600, 800, and/or 810 (FIGS. 2A, 4, 6A-6B, 8A, 8C, 9A-9D). For example, an image (e.g., icon), a button, and text (e.g., hyperlink) each constitutes an affordance.

As used herein, the term “focus selector” refers to an input element that indicates a current part of a user interface with which a user is interacting. In some implementations that include a cursor or other location marker, the cursor acts as a “focus selector” so that when an input (e.g., a press input) is detected on a touch-sensitive surface (e.g., touchpad 455 in FIG. 4 or touch-sensitive surface 551 in FIG. 5B) while the cursor is over a particular user interface element (e.g., a button, window, slider or other user interface element), the particular user interface element is adjusted in accordance with the detected input. In some implementations that include a touch screen display (e.g., touch-sensitive display system 212 in FIG. 2A or touch screen 212 in FIG. 5A) that enables direct interaction with user interface elements on the touch screen display, a detected contact on the touch screen acts as a “focus selector” so that when an input (e.g., a press input by the contact) is detected on the touch screen display at a location of a particular user interface element (e.g., a button, window, slider, or other user interface element), the particular user interface element is adjusted in accordance with the detected input. In some implementations, focus is moved from one region of a user interface to another region of the user interface without corresponding movement of a cursor or movement of a contact on a touch screen display (e.g., by using a tab key or arrow keys to move focus from one button to another button); in these implementations, the focus selector moves in accordance with movement of focus between different regions of the user interface. Without regard to the specific form taken by the focus selector, the focus selector is generally the user interface element (or contact on a touch screen display) that is controlled by the user so as to communicate the user's intended interaction with the user interface (e.g., by indicating, to the device, the element of the user interface with which the user is intending to interact). For example, the location of a focus selector (e.g., a cursor, a contact, or a selection box) over a respective button while a press input is detected on the touch-sensitive surface (e.g., a touchpad or touch screen) will indicate that the user is intending to activate the respective button (as opposed to other user interface elements shown on a display of the device).

As used in the specification and claims, the term “characteristic intensity” of a contact refers to a characteristic of the contact based on one or more intensities of the contact. In some embodiments, the characteristic intensity is based on multiple intensity samples. The characteristic intensity is, optionally, based on a predefined number of intensity samples, or a set of intensity samples collected during a predetermined time period (e.g., 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10 seconds) relative to a predefined event (e.g., after detecting the contact, prior to detecting liftoff of the contact, before or after detecting a start of movement of the contact, prior to detecting an end of the contact, before or after detecting an increase in intensity of the contact, and/or before or after detecting a decrease in intensity of the contact). A characteristic intensity of a contact is, optionally based on one or more of: a maximum value of the intensities of the contact, a mean value of the intensities of the contact, an average value of the intensities of the contact, a top 10 percentile value of the intensities of the contact, a value at the half maximum of the intensities of the contact, a value at the 90 percent maximum of the intensities of the contact, or the like. In some embodiments, the duration of the contact is used in determining the characteristic intensity (e.g., when the characteristic intensity is an average of the intensity of the contact over time). In some embodiments, the characteristic intensity is compared to a set of one or more intensity thresholds to determine whether an operation has been performed by a user. For example, the set of one or more intensity thresholds includes a first intensity threshold and a second intensity threshold. In this example, a contact with a characteristic intensity that does not exceed the first threshold results in a first operation, a contact with a characteristic intensity that exceeds the first intensity threshold and does not exceed the second intensity threshold results in a second operation, and a contact with a characteristic intensity that exceeds the second threshold results in a third operation. In some embodiments, a comparison between the characteristic intensity and one or more thresholds is used to determine whether or not to perform one or more operations (e.g., whether to perform a respective operation or forgo performing the respective operation) rather than being used to determine whether to perform a first operation or a second operation.

In some embodiments, a portion of a gesture is identified for purposes of determining a characteristic intensity. For example, a touch-sensitive surface receives a continuous swipe contact transitioning from a start location and reaching an end location, at which point the intensity of the contact increases. In this example, the characteristic intensity of the contact at the end location is based on only a portion of the continuous swipe contact, and not the entire swipe contact (e.g., only the portion of the swipe contact at the end location). In some embodiments, a smoothing algorithm is applied to the intensities of the swipe contact prior to determining the characteristic intensity of the contact. For example, the smoothing algorithm optionally includes one or more of: an unweighted sliding-average smoothing algorithm, a triangular smoothing algorithm, a median filter smoothing algorithm, and/or an exponential smoothing algorithm. In some circumstances, these smoothing algorithms eliminate narrow spikes or dips in the intensities of the swipe contact for purposes of determining a characteristic intensity.

The intensity of a contact on the touch-sensitive surface is characterized relative to one or more intensity thresholds, such as a contact-detection intensity threshold, a light press intensity threshold, a deep press intensity threshold, and/or one or more other intensity thresholds. In some embodiments, the light press intensity threshold corresponds to an intensity at which the device will perform operations typically associated with clicking a button of a physical mouse or a trackpad. In some embodiments, the deep press intensity threshold corresponds to an intensity at which the device will perform operations that are different from operations typically associated with clicking a button of a physical mouse or a trackpad. In some embodiments, when a contact is detected with a characteristic intensity below the light press intensity threshold (e.g., and above a nominal contact-detection intensity threshold below which the contact is no longer detected), the device will move a focus selector in accordance with movement of the contact on the touch-sensitive surface without performing an operation associated with the light press intensity threshold or the deep press intensity threshold. Generally, unless otherwise stated, these intensity thresholds are consistent between different sets of user interface figures.

An increase of characteristic intensity of the contact from an intensity below the light press intensity threshold to an intensity between the light press intensity threshold and the deep press intensity threshold is sometimes referred to as a “light press” input. An increase of characteristic intensity of the contact from an intensity below the deep press intensity threshold to an intensity above the deep press intensity threshold is sometimes referred to as a “deep press” input. An increase of characteristic intensity of the contact from an intensity below the contact-detection intensity threshold to an intensity between the contact-detection intensity threshold and the light press intensity threshold is sometimes referred to as detecting the contact on the touch-surface. A decrease of characteristic intensity of the contact from an intensity above the contact-detection intensity threshold to an intensity below the contact-detection intensity threshold is sometimes referred to as detecting liftoff of the contact from the touch-surface. In some embodiments, the contact-detection intensity threshold is zero. In some embodiments, the contact-detection intensity threshold is greater than zero.

In some embodiments described herein, one or more operations are performed in response to detecting a gesture that includes a respective press input or in response to detecting the respective press input performed with a respective contact (or a plurality of contacts), where the respective press input is detected based at least in part on detecting an increase in intensity of the contact (or plurality of contacts) above a press-input intensity threshold. In some embodiments, the respective operation is performed in response to detecting the increase in intensity of the respective contact above the press-input intensity threshold (e.g., a “down stroke” of the respective press input). In some embodiments, the press input includes an increase in intensity of the respective contact above the press-input intensity threshold and a subsequent decrease in intensity of the contact below the press-input intensity threshold, and the respective operation is performed in response to detecting the subsequent decrease in intensity of the respective contact below the press-input threshold (e.g., an “up stroke” of the respective press input).

In some embodiments, the device employs intensity hysteresis to avoid accidental inputs sometimes termed “jitter,” where the device defines or selects a hysteresis intensity threshold with a predefined relationship to the press-input intensity threshold (e.g., the hysteresis intensity threshold is X intensity units lower than the press-input intensity threshold or the hysteresis intensity threshold is 75%, 90%, or some reasonable proportion of the press-input intensity threshold). Thus, in some embodiments, the press input includes an increase in intensity of the respective contact above the press-input intensity threshold and a subsequent decrease in intensity of the contact below the hysteresis intensity threshold that corresponds to the press-input intensity threshold, and the respective operation is performed in response to detecting the subsequent decrease in intensity of the respective contact below the hysteresis intensity threshold (e.g., an “up stroke” of the respective press input). Similarly, in some embodiments, the press input is detected only when the device detects an increase in intensity of the contact from an intensity at or below the hysteresis intensity threshold to an intensity at or above the press-input intensity threshold and, optionally, a subsequent decrease in intensity of the contact to an intensity at or below the hysteresis intensity, and the respective operation is performed in response to detecting the press input (e.g., the increase in intensity of the contact or the decrease in intensity of the contact, depending on the circumstances).

For ease of explanation, the descriptions of operations performed in response to a press input associated with a press-input intensity threshold or in response to a gesture including the press input are, optionally, triggered in response to detecting either: an increase in intensity of a contact above the press-input intensity threshold, an increase in intensity of a contact from an intensity below the hysteresis intensity threshold to an intensity above the press-input intensity threshold, a decrease in intensity of the contact below the press-input intensity threshold, and/or a decrease in intensity of the contact below the hysteresis intensity threshold corresponding to the press-input intensity threshold. Additionally, in examples where an operation is described as being performed in response to detecting a decrease in intensity of a contact below the press-input intensity threshold, the operation is, optionally, performed in response to detecting a decrease in intensity of the contact below a hysteresis intensity threshold corresponding to, and lower than, the press-input intensity threshold.

3. Digital Assistant System

FIG. 7A illustrates a block diagram of digital assistant system 700 in accordance with various examples. In some examples, digital assistant system 700 is implemented on a standalone computer system. In some examples, digital assistant system 700 is distributed across multiple computers. In some examples, some of the modules and functions of the digital assistant are divided into a server portion and a client portion, where the client portion resides on one or more user devices (e.g., devices 104, 122, 200, 400, 600, 800, and/or 810) and communicates with the server portion (e.g., server system 108) through one or more networks, e.g., as shown in FIG. 1. In some examples, digital assistant system 700 is an implementation of server system 108 (and/or DA server 106) shown in FIG. 1. It should be noted that digital assistant system 700 is only one example of a digital assistant system, and that digital assistant system 700 can have more or fewer components than shown, can combine two or more components, or can have a different configuration or arrangement of the components. The various components shown in FIG. 7A are implemented in hardware, software instructions for execution by one or more processors, firmware, including one or more signal processing and/or application specific integrated circuits, or a combination thereof.

Digital assistant system 700 includes memory 702, one or more processors 704, input/output (I/O) interface 706, and network communications interface 708. These components can communicate with one another over one or more communication buses or signal lines 710.

In some examples, memory 702 includes a non-transitory computer-readable medium, such as high-speed random access memory and/or a non-volatile computer-readable storage medium (e.g., one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state memory devices).

In some examples, I/O interface 706 couples input/output devices 716 of digital assistant system 700, such as displays, keyboards, touch screens, and microphones, to user interface module 722. I/O interface 706, in conjunction with user interface module 722, receives user inputs (e.g., voice input, keyboard inputs, touch inputs, etc.) and processes them accordingly. In some examples, e.g., when the digital assistant is implemented on a standalone user device, digital assistant system 700 includes any of the components and I/O communication interfaces described with respect to devices 200, 400, 600, 800, or 810 in FIGS. 2A, 4, 6A-6B, 8A, 8C, and 9A-9D. In some examples, digital assistant system 700 represents the server portion of a digital assistant implementation, and can interact with the user through a client-side portion residing on a user device (e.g., devices 104, 200, 400, 600, 800, or 810).

In some examples, the network communications interface 708 includes wired communication port(s) 712 and/or wireless transmission and reception circuitry 714. The wired communication port(s) receives and send communication signals via one or more wired interfaces, e.g., Ethernet, Universal Serial Bus (USB), FIREWIRE, etc. The wireless circuitry 714 receives and sends RF signals and/or optical signals from/to communications networks and other communications devices. The wireless communications use any of a plurality of communications standards, protocols, and technologies, such as GSM, EDGE, CDMA, TDMA, Bluetooth, Wi-Fi, VoIP, Wi-MAX, or any other suitable communication protocol. Network communications interface 708 enables communication between digital assistant system 700 with networks, such as the Internet, an intranet, and/or a wireless network, such as a cellular telephone network, a wireless local area network (LAN), and/or a metropolitan area network (MAN), and other devices.

In some examples, memory 702, or the computer-readable storage media of memory 702, stores programs, modules, instructions, and data structures including all or a subset of: operating system 718, communications module 720, user interface module 722, one or more applications 724, and digital assistant module 726. In particular, memory 702, or the computer-readable storage media of memory 702, stores instructions for performing the processes described below. One or more processors 704 execute these programs, modules, and instructions, and reads/writes from/to the data structures.

Operating system 718 (e.g., Darwin, RTXC, LINUX, UNIX, iOS, OS X, WINDOWS, or an embedded operating system such as VxWorks) includes various software components and/or drivers for controlling and managing general system tasks (e.g., memory management, storage device control, power management, etc.) and facilitates communications between various hardware, firmware, and software components.

Communications module 720 facilitates communications between digital assistant system 700 with other devices over network communications interface 708. For example, communications module 720 communicates with RF circuitry 208 of electronic devices such as devices 200, 400, and 600 shown in FIGS. 2A, 4, 6A-6B, respectively. Communications module 720 also includes various components for handling data received by wireless circuitry 714 and/or wired communications port 712.

User interface module 722 receives commands and/or inputs from a user via I/O interface 706 (e.g., from a keyboard, touch screen, pointing device, controller, and/or microphone), and generate user interface objects on a display. User interface module 722 also prepares and delivers outputs (e.g., speech, sound, animation, text, icons, vibrations, haptic feedback, light, etc.) to the user via the I/O interface 706 (e.g., through displays, audio channels, speakers, touch-pads, etc.).

Applications 724 include programs and/or modules that are configured to be executed by one or more processors 704. For example, if the digital assistant system is implemented on a standalone user device, applications 724 include user applications, such as games, a calendar application, a navigation application, or an email application. If digital assistant system 700 is implemented on a server, applications 724 include resource management applications, diagnostic applications, or scheduling applications, for example.

Memory 702 also stores digital assistant module 726 (or the server portion of a digital assistant). In some examples, digital assistant module 726 includes the following sub-modules, or a subset or superset thereof: input/output processing module 728, speech-to-text (STT) processing module 730, natural language processing module 732, dialogue flow processing module 734, task flow processing module 736, service processing module 738, and speech synthesis processing module 740. Each of these modules has access to one or more of the following systems or data and models of the digital assistant module 726, or a subset or superset thereof: ontology 760, vocabulary index 744, user data 748, task flow models 754, service models 756, and ASR systems 758.

In some examples, using the processing modules, data, and models implemented in digital assistant module 726, the digital assistant can perform at least some of the following: converting speech input into text; identifying a user's intent expressed in a natural language input received from the user; actively eliciting and obtaining information needed to fully infer the user's intent (e.g., by disambiguating words, games, intentions, etc.); determining the task flow for fulfilling the inferred intent; and executing the task flow to fulfill the inferred intent.

In some examples, as shown in FIG. 7B, I/O processing module 728 interacts with the user through I/O devices 716 in FIG. 7A or with a user device (e.g., devices 104, 200, 400, or 600) through network communications interface 708 in FIG. 7A to obtain user input (e.g., a speech input) and to provide responses (e.g., as speech outputs) to the user input. I/O processing module 728 optionally obtains contextual information associated with the user input from the user device, along with or shortly after the receipt of the user input. The contextual information includes user-specific data, vocabulary, and/or preferences relevant to the user input. In some examples, the contextual information also includes software and hardware states of the user device at the time the user request is received, and/or information related to the surrounding environment of the user at the time that the user request was received. In some examples, I/O processing module 728 also sends follow-up questions to, and receive answers from, the user regarding the user request. When a user request is received by I/O processing module 728 and the user request includes speech input, I/O processing module 728 forwards the speech input to STT processing module 730 (or speech recognizer) for speech-to-text conversions.

STT processing module 730 includes one or more ASR systems 758. The one or more ASR systems 758 can process the speech input that is received through I/O processing module 728 to produce a recognition result. Each ASR system 758 includes a front-end speech pre-processor. The front-end speech pre-processor extracts representative features from the speech input. For example, the front-end speech pre-processor performs a Fourier transform on the speech input to extract spectral features that characterize the speech input as a sequence of representative multi-dimensional vectors. Further, each ASR system 758 includes one or more speech recognition models (e.g., acoustic models and/or language models) and implements one or more speech recognition engines. Examples of speech recognition models include Hidden Markov Models, Gaussian-Mixture Models, Deep Neural Network Models, n-gram language models, and other statistical models. Examples of speech recognition engines include the dynamic time warping based engines and weighted finite-state transducers (WFST) based engines. The one or more speech recognition models and the one or more speech recognition engines are used to process the extracted representative features of the front-end speech pre-processor to produce intermediate recognitions results (e.g., phonemes, phonemic strings, and sub-words), and ultimately, text recognition results (e.g., words, word strings, or sequence of tokens). In some examples, the speech input is processed at least partially by a third-party service or on the user's device (e.g., device 104, 200, 400, or 600) to produce the recognition result. Once STT processing module 730 produces recognition results containing a text string (e.g., words, or sequence of words, or sequence of tokens), the recognition result is passed to natural language processing module 732 for intent deduction. In some examples, STT processing module 730 produces multiple candidate text representations of the speech input. Each candidate text representation is a sequence of words or tokens corresponding to the speech input. In some examples, each candidate text representation is associated with a speech recognition confidence score. Based on the speech recognition confidence scores, STT processing module 730 ranks the candidate text representations and provides the n-best (e.g., n highest ranked) candidate text representation(s) to natural language processing module 732 for intent deduction, where n is a predetermined integer greater than zero. For example, in one example, only the highest ranked (n=1) candidate text representation is passed to natural language processing module 732 for intent deduction. In another example, the five highest ranked (n=5) candidate text representations are passed to natural language processing module 732 for intent deduction.

More details on the speech-to-text processing are described in U.S. Utility application Ser. No. 13/236,942 for “Consolidating Speech Recognition Results,” filed on Sep. 20, 2011, the entire disclosure of which is incorporated herein by reference.

In some examples, STT processing module 730 includes and/or accesses a vocabulary of recognizable words via phonetic alphabet conversion module 731. Each vocabulary word is associated with one or more candidate pronunciations of the word represented in a speech recognition phonetic alphabet. In particular, the vocabulary of recognizable words includes a word that is associated with a plurality of candidate pronunciations. For example, the vocabulary includes the word “tomato” that is associated with the candidate pronunciations of

and

. Further, vocabulary words are associated with custom candidate pronunciations that are based on previous speech inputs from the user. Such custom candidate pronunciations are stored in STT processing module 730 and are associated with a particular user via the user's profile on the device. In some examples, the candidate pronunciations for words are determined based on the spelling of the word and one or more linguistic and/or phonetic rules. In some examples, the candidate pronunciations are manually generated, e.g., based on known canonical pronunciations.

In some examples, the candidate pronunciations are ranked based on the commonness of the candidate pronunciation. For example, the candidate pronunciation

is ranked higher than

, because the former is a more commonly used pronunciation (e.g., among all users, for users in a particular geographical region, or for any other appropriate subset of users). In some examples, candidate pronunciations are ranked based on whether the candidate pronunciation is a custom candidate pronunciation associated with the user. For example, custom candidate pronunciations are ranked higher than canonical candidate pronunciations. This can be useful for recognizing proper nouns having a unique pronunciation that deviates from canonical pronunciation. In some examples, candidate pronunciations are associated with one or more speech characteristics, such as geographic origin, nationality, or ethnicity. For example, the candidate pronunciation

is associated with the United States, whereas the candidate pronunciation

is associated with Great Britain. Further, the rank of the candidate pronunciation is based on one or more characteristics (e.g., geographic origin, nationality, ethnicity, etc.) of the user stored in the user's profile on the device. For example, it can be determined from the user's profile that the user is associated with the United States. Based on the user being associated with the United States, the candidate pronunciation

(associated with the United States) is ranked higher than the candidate pronunciation

(associated with Great Britain). In some examples, one of the ranked candidate pronunciations is selected as a predicted pronunciation (e.g., the most likely pronunciation).

When a speech input is received, STT processing module 730 is used to determine the phonemes corresponding to the speech input (e.g., using an acoustic model), and then attempt to determine words that match the phonemes (e.g., using a language model). For example, if STT processing module 730 first identifies the sequence of phonemes

corresponding to a portion of the speech input, it can then determine, based on vocabulary index 744, that this sequence corresponds to the word “tomato.”

In some examples, STT processing module 730 uses approximate matching techniques to determine words in an utterance. Thus, for example, the STT processing module 730 determines that the sequence of phonemes

corresponds to the word “tomato,” even if that particular sequence of phonemes is not one of the candidate sequence of phonemes for that word.

Natural language processing module 732 (“natural language processor”) of the digital assistant takes the n-best candidate text representation(s) (“word sequence(s)” or “token sequence(s)”) generated by STT processing module 730, and attempts to associate each of the candidate text representations with one or more “actionable intents” recognized by the digital assistant. An “actionable intent” (or “user intent”) represents a task that can be performed by the digital assistant, and can have an associated task flow implemented in task flow models 754. The associated task flow is a series of programmed actions and steps that the digital assistant takes in order to perform the task. The scope of a digital assistant's capabilities is dependent on the number and variety of task flows that have been implemented and stored in task flow models 754, or in other words, on the number and variety of “actionable intents” that the digital assistant recognizes. The effectiveness of the digital assistant, however, also dependents on the assistant's ability to infer the correct “actionable intent(s)” from the user request expressed in natural language.

In some examples, in addition to the sequence of words or tokens obtained from STT processing module 730, natural language processing module 732 also receives contextual information associated with the user request, e.g., from I/O processing module 728. The natural language processing module 732 optionally uses the contextual information to clarify, supplement, and/or further define the information contained in the candidate text representations received from STT processing module 730. The contextual information includes, for example, user preferences, hardware, and/or software states of the user device, sensor information collected before, during, or shortly after the user request, prior interactions (e.g., dialogue) between the digital assistant and the user, and the like. As described herein, contextual information is, in some examples, dynamic, and changes with time, location, content of the dialogue, and other factors.

In some examples, the natural language processing is based on, e.g., ontology 760. Ontology 760 is a hierarchical structure containing many nodes, each node representing either an “actionable intent” or a “property” relevant to one or more of the “actionable intents” or other “properties.” As noted above, an “actionable intent” represents a task that the digital assistant is capable of performing, i.e., it is “actionable” or can be acted on. A “property” represents a parameter associated with an actionable intent or a sub-aspect of another property. A linkage between an actionable intent node and a property node in ontology 760 defines how a parameter represented by the property node pertains to the task represented by the actionable intent node.

In some examples, ontology 760 is made up of actionable intent nodes and property nodes. Within ontology 760, each actionable intent node is linked to one or more property nodes either directly or through one or more intermediate property nodes. Similarly, each property node is linked to one or more actionable intent nodes either directly or through one or more intermediate property nodes. For example, as shown in FIG. 7C, ontology 760 includes a “restaurant reservation” node (i.e., an actionable intent node). Property nodes “restaurant,” “date/time” (for the reservation), and “party size” are each directly linked to the actionable intent node (i.e., the “restaurant reservation” node).

In addition, property nodes “cuisine,” “price range,” “phone number,” and “location” are sub-nodes of the property node “restaurant,” and are each linked to the “restaurant reservation” node (i.e., the actionable intent node) through the intermediate property node “restaurant.” For another example, as shown in FIG. 7C, ontology 760 also includes a “set reminder” node (i.e., another actionable intent node). Property nodes “date/time” (for setting the reminder) and “subject” (for the reminder) are each linked to the “set reminder” node. Since the property “date/time” is relevant to both the task of making a restaurant reservation and the task of setting a reminder, the property node “date/time” is linked to both the “restaurant reservation” node and the “set reminder” node in ontology 760.

An actionable intent node, along with its linked property nodes, is described as a “domain.” In the present discussion, each domain is associated with a respective actionable intent, and refers to the group of nodes (and the relationships there between) associated with the particular actionable intent. For example, ontology 760 shown in FIG. 7C includes an example of restaurant reservation domain 762 and an example of reminder domain 764 within ontology 760. The restaurant reservation domain includes the actionable intent node “restaurant reservation,” property nodes “restaurant,” “date/time,” and “party size,” and sub-property nodes “cuisine,” “price range,” “phone number,” and “location.” Reminder domain 764 includes the actionable intent node “set reminder,” and property nodes “subject” and “date/time.” In some examples, ontology 760 is made up of many domains. Each domain shares one or more property nodes with one or more other domains. For example, the “date/time” property node is associated with many different domains (e.g., a scheduling domain, a travel reservation domain, a movie ticket domain, etc.), in addition to restaurant reservation domain 762 and reminder domain 764.

While FIG. 7C illustrates two example domains within ontology 760, other domains include, for example, “find a movie,” “initiate a phone call,” “find directions,” “schedule a meeting,” “send a message,” and “provide an answer to a question,” “read a list,” “providing navigation instructions,” “provide instructions for a task” and so on. A “send a message” domain is associated with a “send a message” actionable intent node, and further includes property nodes such as “recipient(s),” “message type,” and “message body.” The property node “recipient” is further defined, for example, by the sub-property nodes such as “recipient name” and “message address.”

In some examples, ontology 760 includes all the domains (and hence actionable intents) that the digital assistant is capable of understanding and acting upon. In some examples, ontology 760 is modified, such as by adding or removing entire domains or nodes, or by modifying relationships between the nodes within the ontology 760.

In some examples, nodes associated with multiple related actionable intents are clustered under a “super domain” in ontology 760. For example, a “travel” super-domain includes a cluster of property nodes and actionable intent nodes related to travel. The actionable intent nodes related to travel includes “airline reservation,” “hotel reservation,” “car rental,” “get directions,” “find points of interest,” and so on. The actionable intent nodes under the same super domain (e.g., the “travel” super domain) have many property nodes in common. For example, the actionable intent nodes for “airline reservation,” “hotel reservation,” “car rental,” “get directions,” and “find points of interest” share one or more of the property nodes “start location,” “destination,” “departure date/time,” “arrival date/time,” and “party size.”

In some examples, each node in ontology 760 is associated with a set of words and/or phrases that are relevant to the property or actionable intent represented by the node. The respective set of words and/or phrases associated with each node are the so-called “vocabulary” associated with the node. The respective set of words and/or phrases associated with each node are stored in vocabulary index 744 in association with the property or actionable intent represented by the node. For example, returning to FIG. 7B, the vocabulary associated with the node for the property of “restaurant” includes words such as “food,” “drinks,” “cuisine,” “hungry,” “eat,” “pizza,” “fast food,” “meal,” and so on. For another example, the vocabulary associated with the node for the actionable intent of “initiate a phone call” includes words and phrases such as “call,” “phone,” “dial,” “ring,” “call this number,” “make a call to,” and so on. The vocabulary index 744 optionally includes words and phrases in different languages.

Natural language processing module 732 receives the candidate text representations (e.g., text string(s) or token sequence(s)) from STT processing module 730, and for each candidate representation, determines what nodes are implicated by the words in the candidate text representation. In some examples, if a word or phrase in the candidate text representation is found to be associated with one or more nodes in ontology 760 (via vocabulary index 744), the word or phrase “triggers” or “activates” those nodes. Based on the quantity and/or relative importance of the activated nodes, natural language processing module 732 selects one of the actionable intents as the task that the user intended the digital assistant to perform. In some examples, the domain that has the most “triggered” nodes is selected. In some examples, the domain having the highest confidence value (e.g., based on the relative importance of its various triggered nodes) is selected. In some examples, the domain is selected based on a combination of the number and the importance of the triggered nodes. In some examples, additional factors are considered in selecting the node as well, such as whether the digital assistant has previously correctly interpreted a similar request from a user.

User data 748 includes user-specific information, such as user-specific vocabulary, user preferences, user address, user's default and secondary languages, user's contact list, and other short-term or long-term information for each user. In some examples, natural language processing module 732 uses the user-specific information to supplement the information contained in the user input to further define the user intent. For example, for a user request “invite my friends to my birthday party,” natural language processing module 732 is able to access user data 748 to determine who the “friends” are and when and where the “birthday party” would be held, rather than requiring the user to provide such information explicitly in his/her request.

It should be recognized that in some examples, natural language processing module 732 is implemented using one or more machine learning mechanisms (e.g., neural networks). In particular, the one or more machine learning mechanisms are configured to receive a candidate text representation and contextual information associated with the candidate text representation. Based on the candidate text representation and the associated contextual information, the one or more machine learning mechanisms are configured to determine intent confidence scores over a set of candidate actionable intents. Natural language processing module 732 can select one or more candidate actionable intents from the set of candidate actionable intents based on the determined intent confidence scores. In some examples, an ontology (e.g., ontology 760) is also used to select the one or more candidate actionable intents from the set of candidate actionable intents.

Other details of searching an ontology based on a token string are described in U.S. Utility application Ser. No. 12/341,743 for “Method and Apparatus for Searching Using An Active Ontology,” filed Dec. 22, 2008, the entire disclosure of which is incorporated herein by reference.

In some examples, once natural language processing module 732 identifies an actionable intent (or domain) based on the user request, natural language processing module 732 generates a structured query to represent the identified actionable intent. In some examples, the structured query includes parameters for one or more nodes within the domain for the actionable intent, and at least some of the parameters are populated with the specific information and requirements specified in the user request. For example, the user says “Make me a dinner reservation at a sushi place at 7.” In this case, natural language processing module 732 is able to correctly identify the actionable intent to be “restaurant reservation” based on the user input. According to the ontology, a structured query for a “restaurant reservation” domain includes parameters such as {Cuisine}, {Time}, {Date}, {Party Size}, and the like. In some examples, based on the speech input and the text derived from the speech input using STT processing module 730, natural language processing module 732 generates a partial structured query for the restaurant reservation domain, where the partial structured query includes the parameters {Cuisine=“Sushi”} and {Time=“7 pm”}. However, in this example, the user's utterance contains insufficient information to complete the structured query associated with the domain. Therefore, other necessary parameters such as {Party Size} and {Date} are not specified in the structured query based on the information currently available. In some examples, natural language processing module 732 populates some parameters of the structured query with received contextual information. For example, in some examples, if the user requested a sushi restaurant “near me,” natural language processing module 732 populates a {location} parameter in the structured query with GPS coordinates from the user device.

In some examples, natural language processing module 732 identifies multiple candidate actionable intents for each candidate text representation received from STT processing module 730. Further, in some examples, a respective structured query (partial or complete) is generated for each identified candidate actionable intent. Natural language processing module 732 determines an intent confidence score for each candidate actionable intent and ranks the candidate actionable intents based on the intent confidence scores. In some examples, natural language processing module 732 passes the generated structured query (or queries), including any completed parameters, to task flow processing module 736 (“task flow processor”). In some examples, the structured query (or queries) for the m-best (e.g., m highest ranked) candidate actionable intents are provided to task flow processing module 736, where m is a predetermined integer greater than zero. In some examples, the structured query (or queries) for the m-best candidate actionable intents are provided to task flow processing module 736 with the corresponding candidate text representation(s).

Other details of inferring a user intent based on multiple candidate actionable intents determined from multiple candidate text representations of a speech input are described in U.S. Utility application Ser. No. 14/298,725 for “System and Method for Inferring User Intent From Speech Inputs,” filed Jun. 6, 2014, the entire disclosure of which is incorporated herein by reference.

Task flow processing module 736 is configured to receive the structured query (or queries) from natural language processing module 732, complete the structured query, if necessary, and perform the actions required to “complete” the user's ultimate request. In some examples, the various procedures necessary to complete these tasks are provided in task flow models 754. In some examples, task flow models 754 include procedures for obtaining additional information from the user and task flows for performing actions associated with the actionable intent.

As described above, in order to complete a structured query, task flow processing module 736 needs to initiate additional dialogue with the user in order to obtain additional information, and/or disambiguate potentially ambiguous utterances. When such interactions are necessary, task flow processing module 736 invokes dialogue flow processing module 734 to engage in a dialogue with the user. In some examples, dialogue flow processing module 734 determines how (and/or when) to ask the user for the additional information and receives and processes the user responses. The questions are provided to and answers are received from the users through I/O processing module 728. In some examples, dialogue flow processing module 734 presents dialogue output to the user via audio and/or visual output, and receives input from the user via spoken or physical (e.g., clicking) responses. Continuing with the example above, when task flow processing module 736 invokes dialogue flow processing module 734 to determine the “party size” and “date” information for the structured query associated with the domain “restaurant reservation,” dialogue flow processing module 734 generates questions such as “For how many people?” and “On which day?” to pass to the user. Once answers are received from the user, dialogue flow processing module 734 then populates the structured query with the missing information, or pass the information to task flow processing module 736 to complete the missing information from the structured query.

Once task flow processing module 736 has completed the structured query for an actionable intent, task flow processing module 736 proceeds to perform the ultimate task associated with the actionable intent. Accordingly, task flow processing module 736 executes the steps and instructions in the task flow model according to the specific parameters contained in the structured query. For example, the task flow model for the actionable intent of “restaurant reservation” includes steps and instructions for contacting a restaurant and actually requesting a reservation for a particular party size at a particular time. For example, using a structured query such as: {restaurant reservation, restaurant=ABC Café, date=3/12/2012, time=7 pm, party size=5}, task flow processing module 736 performs the steps of: (1) logging onto a server of the ABC Café or a restaurant reservation system such as OPENTABLE®, (2) entering the date, time, and party size information in a form on the website, (3) submitting the form, and (4) making a calendar entry for the reservation in the user's calendar.

In some examples, task flow processing module 736 employs the assistance of service processing module 738 (“service processing module”) to complete a task requested in the user input or to provide an informational answer requested in the user input. For example, service processing module 738 acts on behalf of task flow processing module 736 to make a phone call, set a calendar entry, invoke a map search, invoke or interact with other user applications installed on the user device, and invoke or interact with third-party services (e.g., a restaurant reservation portal, a social networking website, a banking portal, etc.). In some examples, the protocols and application programming interfaces (API) required by each service are specified by a respective service model among service models 756. Service processing module 738 accesses the appropriate service model for a service and generates requests for the service in accordance with the protocols and APIs required by the service according to the service model.

For example, if a restaurant has enabled an online reservation service, the restaurant submits a service model specifying the necessary parameters for making a reservation and the APIs for communicating the values of the necessary parameter to the online reservation service. When requested by task flow processing module 736, service processing module 738 establishes a network connection with the online reservation service using the web address stored in the service model, and sends the necessary parameters of the reservation (e.g., time, date, party size) to the online reservation interface in a format according to the API of the online reservation service.

In some examples, natural language processing module 732, dialogue flow processing module 734, and task flow processing module 736 are used collectively and iteratively to infer and define the user's intent, obtain information to further clarify and refine the user intent, and finally generate a response (i.e., an output to the user, or the completion of a task) to fulfill the user's intent. The generated response is a dialogue response to the speech input that at least partially fulfills the user's intent. Further, in some examples, the generated response is output as a speech output. In these examples, the generated response is sent to speech synthesis processing module 740 (e.g., speech synthesizer) where it can be processed to synthesize the dialogue response in speech form. In yet other examples, the generated response is data content relevant to satisfying a user request in the speech input.

In examples where task flow processing module 736 receives multiple structured queries from natural language processing module 732, task flow processing module 736 initially processes the first structured query of the received structured queries to attempt to complete the first structured query and/or execute one or more tasks or actions represented by the first structured query. In some examples, the first structured query corresponds to the highest ranked actionable intent. In other examples, the first structured query is selected from the received structured queries based on a combination of the corresponding speech recognition confidence scores and the corresponding intent confidence scores. In some examples, if task flow processing module 736 encounters an error during processing of the first structured query (e.g., due to an inability to determine a necessary parameter), the task flow processing module 736 can proceed to select and process a second structured query of the received structured queries that corresponds to a lower ranked actionable intent. The second structured query is selected, for example, based on the speech recognition confidence score of the corresponding candidate text representation, the intent confidence score of the corresponding candidate actionable intent, a missing necessary parameter in the first structured query, or any combination thereof.

Speech synthesis processing module 740 is configured to synthesize speech outputs for presentation to the user. Speech synthesis processing module 740 synthesizes speech outputs based on text provided by the digital assistant. For example, the generated dialogue response is in the form of a text string. Speech synthesis processing module 740 converts the text string to an audible speech output. Speech synthesis processing module 740 uses any appropriate speech synthesis technique in order to generate speech outputs from text, including, but not limited, to concatenative synthesis, unit selection synthesis, diphone synthesis, domain-specific synthesis, formant synthesis, articulatory synthesis, hidden Markov model (HMM) based synthesis, and sinewave synthesis. In some examples, speech synthesis processing module 740 is configured to synthesize individual words based on phonemic strings corresponding to the words. For example, a phonemic string is associated with a word in the generated dialogue response. The phonemic string is stored in metadata associated with the word. Speech synthesis processing module 740 is configured to directly process the phonemic string in the metadata to synthesize the word in speech form.

In some examples, instead of (or in addition to) using speech synthesis processing module 740, speech synthesis is performed on a remote device (e.g., the server system 108), and the synthesized speech is sent to the user device for output to the user. For example, this can occur in some implementations where outputs for a digital assistant are generated at a server system. And because server systems generally have more processing power or resources than a user device, it is possible to obtain higher quality speech outputs than would be practical with client-side synthesis.

Additional details on digital assistants can be found in the U.S. Utility application Ser. No. 12/987,982, entitled “Intelligent Automated Assistant,” filed Jan. 10, 2011, and U.S. Utility application Ser. No. 13/251,088, entitled “Generating and Processing Task Items That Represent Tasks to Perform,” filed Sep. 30, 2011, the entire disclosures of which are incorporated herein by reference.

4. Providing Spoken Notifications

FIGS. 8A-8C and 9A-9D show exemplary systems and techniques for providing and responding to spoken notifications. These figures illustrate some example processes discussed below, including processes 1000 and 1100 of FIGS. 10A-E and 11A-D, respectively.

FIG. 8A shows an electronic device providing an output associated with a notification when a user of the device is not speaking, according to some examples. Specifically, in FIG. 8A, device 800 (e.g., a user's phone) receives a notification. The notification is a text message from the user's mom asking “where are you?”. According to the techniques discussed below, device 800 determines that the user is not speaking after receipt of the text message. For example, device 800 determines that within a first predetermined duration after receiving the text message, the user is not speaking for a second predetermined duration. Device 800 thus causes accessory device 810 to provide a spoken output of the text message. In this manner, spoken notification outputs may be provided at appropriate times, such as when a user is not speaking.

Device 800 is, for example, implemented using devices 200, 400, or 600, discussed above. In some examples, device 800 includes the modules and functions of a digital assistant described above in FIGS. 7A-7C. In some examples, device 800 includes at least some of the components and functions of system 820, described below. In the example of FIG. 8A, device 800 is a smart phone. However, device 800 device may be any type of device, such as a phone, laptop computer, desktop computer, tablet, wearable device (e.g., smart watch), television, speaker, vehicle console, or any combination thereof.

Accessory device 810 is, for example, implemented using device 200, 400, or 600. In some examples, accessory device 810 includes at least some of the components and functions of system 820, described below. In some examples, accessory device 810 is a peripheral device to device 800, external to device 800, and/or has the same user as device 800. In some examples, accessory device 810 is communicatively coupled to device 800 to enable exchange of data and/or commands between the devices (e.g., via Bluetooth and/or any other communication protocol discussed with respect to RF circuitry 208). In the example of FIG. 8A, device 810 is a headset (e.g., wireless earbuds). However, device 810 may be any type of device, such as a phone, laptop computer, desktop computer, tablet, wearable device (e.g., smart watch), television, speaker, vehicle console, or any combination thereof.

In some examples, accessory device 810 includes one or more controllers (e.g., controller 222), processors (e.g., processor 220), memories (e.g., memory 202), microphones (e.g., microphone 213), audio output components (e.g., earbuds or ear pieces), and communication modules and interfaces (e.g., wireless circuitry 714). In some examples, the controller(s) and/or processor(s) of device 810 have fewer functionalities than the controller(s) and/or processor(s) of device 800. For example, the controller(s) and/or processor(s) of device 810 facilitate the performance of limited functionalities such as audio signal processing, battery management, and wireless communications management.

In some examples, accessory device 810 is unable to operate a digital assistant or can operate a digital assistant with limited capability. In some examples, accessory device 810 can operate a digital assistant with full capability. Thus, in some examples, device 810 includes at least some of the modules and functions of a digital assistant discussed above with respect to FIGS. 7A-7C. For example, device 810 can detect a trigger phrase for initiating a digital assistant (e.g., “Hey Siri”) and transmit speech input to other devices (e.g., device 800) for further processing. However, in some examples, device 810 cannot perform certain processing tasks such as automatic speech recognition, intent determination, task flow processing, and the like. In some examples, device 810 (e.g., earbuds) does not include a graphical user interface to display information and includes only an audio interface to facilitate user interaction with the device.

FIG. 8B shows system 820 for providing and responding to spoken notifications, according to some examples. In some examples, system 820 is implemented on a standalone computer system (e.g., device 104, 122, 200, 400, 600, 800, or 810). In some examples, system 820 is distributed across multiple devices (e.g., devices 800 and 810), with the modules and functions of system 820 divided up in any manner between devices 800 and 810. In some examples, some of the modules and functions of system 820 are divided into a server portion and a client portion, where the client portion resides on one or more user devices (e.g., devices 800 and/or 810) and communicates with the server portion (e.g., server system 108, 900) through one or more networks, e.g., as shown in FIG. 1. System 820 is implemented using hardware, software, or a combination of hardware and software to carry out the principles discussed herein.

System 820 is exemplary, and thus system 820 can have more or fewer components than shown, can combine two or more components, or can have a different configuration or arrangement of the components. Further, although the below discussion describes functions being performed at a single component of system 820, such functions can be performed at other components of system 820 and such functions can be performed at more than one component of system 820.

System 820 includes notifications module 830. Notifications module 830 receives indications of notifications and causes outputs associated with notifications (notification outputs) to be provided. In some examples, receiving an indication of a notification includes receiving (or generating) the notification at an electronic device. For example, in FIG. 8A, device 800 receives the text message “where are you?” from the user's mom. In some examples, receiving an indication of a notification includes receiving the indication from an external electronic device that received the notification. For example, when device 800 (here the external device) receives the notification, device 800 sends an indication of the notification to device 810 and device 810 receives the indication from device 800.

In some examples, a notification includes a text message, an email message, an instant message, an emergency alert, a phone/video call notification, a voice mail notification, an application notification (e.g., a notification provided by an application installed on device 800, such as a news notification, a delivery notification, a flight gate change notification), or a combination thereof. In some examples, devices 800 and/or 810 generate a notification. Exemplary device generated notifications include a low battery notification, a software update notification, and the like.

System 820 includes sensor module 840. Sensor module 840 includes sensor(s) such as speech sensor(s) 842 (e.g., microphones) and/or vibration sensor(s) 844 (e.g., bone conduction microphones, accelerometers, gyroscopes, velocity sensors, pressure sensors). In some examples, sensor module 840 obtains data stream(s) from respective sensor(s) in accordance with notifications module 830 receiving an indication of a notification. In some examples, sensor module 840 is implemented on device 810 (e.g., device 810 includes speech sensor(s) and/or vibration sensor(s)). In some examples, sensor module 840 (e.g., implemented on device 810) sends (e.g., streams) data stream(s) to device 800 and device 800 obtains the data stream(s). Obtaining data stream(s) can allow determination of whether a user is speaking. Determining whether a user is speaking may allow provision of notification outputs when the user is not speaking. This can provide a desirable user experience by preventing a user from being interrupted by spoken notification outputs while speaking.

In some examples, sensor module 840 concurrently obtains data streams for a predetermined duration. For example, after an indication of a notification is received, sensor module 840 concurrently samples data from a microphone and a bone conduction microphone for a predetermined duration (e.g., 3, 4, 6, 7, 8, 9, 10 seconds). Thus, sensor module 840 can sample data for a predetermined duration (e.g., time window) to detect user speech (e.g., determine whether the user is speaking) during that duration. As discussed below, in some examples, if user speech is detected for the predetermined duration, a notification output is not provided. In some examples, if user speech is not detected within the predetermined duration, a notification output is provided. The predetermined duration can thus represent a time window during which notification outputs can be provided.

System 820 includes determination module 850. Determination module 850 determines whether to provide a notification output in accordance with notifications module 830 receiving an indication of a notification. In some examples, determining whether to provide a notification output includes determining whether a user would be interrupted by the notification output. In some examples, determining whether a user would be interrupted by a notification output includes determining whether a user is speaking. For example, if it is determined that a user is speaking, listening, e.g., to media or another person, or otherwise engaged in an activity, it is determined that the user would be interrupted by the notification output. For example, if it is determined that the user is not speaking, listening, or otherwise engaged in an activity, it is determined that the user would not be interrupted by the notification output.

In some examples, determining whether a user would be interrupted by a notification output additionally or alternatively includes determining whether the notification is important, timely, and/or relevant, as discussed below with respect to notifications model 854. For example, if a notification is determined as important, timely, and/or relevant, it is determined that a user would not be interrupted by the notification output. For example, if a notification is determined as not important, not timely, and/or not relevant, it is determined that a user would be interrupted by the notification output.

In some examples, determination module 850 obtains data stream(s) from sensor module 840 and determines whether a user is speaking based on processing the obtained data stream(s). In some examples, determination module 850 is implemented on device 810 so that device 810 processes data stream(s) locally to determine whether a user is speaking. In some examples, determination module is implemented on device 800 so that device 810 sends data stream(s) to device 800 and device 800 processes the data stream(s). In some examples, some functions and components of determination module 850 are implemented on device 800 and others are implemented on device 810. For example, device 810 processes some types of data streams (e.g., data streams from a vibration sensor) while device 800 processes other types of data streams (e.g., data streams from a microphone).

In some examples, determination module 850 includes speech detector 852 configured to process data streams. In some examples, speech detector 852 includes a voice activity detector (VAD) configured to detect speech in a data stream. In some examples, speech detector 852 divides an input data stream into frames (e.g., portions) of a predetermined length, e.g., 25, 50, 100, 200, 300, 400, or 500 milliseconds. In some examples, speech detector 852 determines whether each frame indicates that a user is speaking (indicates user speech). For example, speech detector 852 determines a probability of user speech for each frame and/or makes a “yes” or “no” decision regarding the presence of user speech for each frame. In this manner, speech detector 852 can identify the boundaries of user speech in a data stream and determine the duration(s) during which a user is speaking or not speaking.

In some examples, determining that a user is not speaking includes determining that the user is not speaking for a predetermined duration (e.g., 1, 2, 3, 4, or 5 seconds). In some examples, determining that the user is not speaking includes determining that a portion of a data stream having the predetermined duration indicates no user speech. For example, if speech detector 852 determines that a 2 second portion of a data stream indicates no user speech, determination module 850 determines that the user is not speaking. Thus, notification outputs may be advantageously provided during pauses in (or cessation of) user speech.

In some examples, determining that a user is speaking includes determining that the user is speaking for a predetermined duration, such as the time window for which data stream(s) are obtained. For example, if speech detector 852 detects user speech for the entire time window (e.g., no pause in user speech of a predetermined duration in the time window), determination module 850 determines that the user is speaking.

In some examples, determination module 850 determines whether a first data stream obtained from a speech sensor (or a portion thereof) indicates user speech. In some examples, determining whether the first data stream indicates user speech includes analyzing the time domain and/or frequency domain features of the first data stream to determine whether such features indicate human speech. Exemplary time domain features include zero crossing rates, short-time energy, spectral energy, spectral flatness, and autocorrelation. Exemplary frequency domain features include mel-frequency cepstral coefficients, linear predictive cepstral coefficients, and mel-frequency discrete wavelet coefficients. In addition to analyzing such features, one of skill in the art will appreciate that any other suitable technique (e.g., comparing the data stream to a human speech model) may be employed to determine whether a data stream indicates user speech. For example, speech detector 852 processes the first data stream to determine that a 2 second portion of the data stream indicates user speech. For example, speech detector 852 determines that each frame of a consecutive series of frames (having a collective 2 second duration) indicates user speech.

Processing only the first data stream may not always accurately determine whether a user of device 810 is speaking. In particular, although processing the first data stream may accurately determine whether speech is generally present, such processing may be unable to distinguish the speech of the user of device 810 from other speech (e.g., background noise including speech). For example if the user is in a noisy environment (e.g., a coffee shop) and is not speaking, processing only the first data stream may incorrectly result in determining that the user is speaking. Accordingly, in some examples, a second data stream is processed (e.g., in addition to or alternatively to the first data stream) to determine whether a user is speaking.

In some examples, determination module 850 determines whether a second data stream obtained from a vibration sensor (or a portion thereof) indicates user speech. In some examples, determining that the second data stream indicates user speech includes determining that the second data stream indicates vibrations consistent with user speech. For example, when vibration sensor 844 includes a bone conduction microphone, determining that the second data stream indicates user speech includes determining that the second data stream (e.g., accelerometer data) indicates vibrations consistent with sound conduction through human skull bones. For example, speech detector 852 processes the second data stream to determine that a 2 second portion of the data stream indicates user speech.

Processing the second data stream may more accurately determine whether a user of device 810 is speaking. Specifically, the second data stream (e.g., from a bone conduction microphone of device 810) may be more sensitive to speech of the user while being less sensitive to background noise. For example, the bone conduction microphone may produce relatively strong signals when the user is speaking by detecting skull vibrations caused by user speech. However, even in the presence of background noise, the bone conduction microphone may produce relatively weak signals (or no signal) when the user is not speaking because background noise may not cause sufficient vibration of a user's skull.

In some examples, determination module 850 determines whether a user is speaking based on the first and the second data streams. For example, if the first and second data streams (of portions thereof) both indicate user speech, the data streams likely indicate that the user is speaking during a particular duration. Thus, in accordance with determining that both the first and second data streams indicate user speech, determination module 850 determines that the user is speaking (e.g., for a particular duration). As another example, if the first data stream (or a portion thereof) indicates user speech and the second data stream (or a portion thereof) indicates no user speech, the data streams likely indicate background speech, not user speech. Thus, in accordance with determining that the first data stream indicates user speech and determining that the second data stream indicates no user speech, determination module 850 determines that the user is not speaking (e.g., for a particular duration).

In some examples, determination module 850 concurrently obtains data streams and processes the data streams in parallel to determine whether a user is speaking. Thus, in some examples, portions of the first and second data streams used to determine whether a user is speaking have a same duration and are obtained at a same time. For example, speech detector 852 determines that a 2 second long first portion of the first data stream indicates user speech. Speech detector 852 concurrently determines that a 2 second long second portion of the second data stream (obtained at the same time as the first portion) indicates no user speech. Speech detector 852 thus determines that the user is not speaking for the 2 second duration (e.g., the detected speech is merely background noise).

In some examples, determination module 850 determines that a duration of a portion of a data stream indicating user speech is below a threshold duration (e.g., 0.5, 0.4, 0.3, 0.2, 0.1 seconds). In some examples, in accordance with such determination, determination module 850 determines that the user is not speaking (e.g., during that duration). This may prevent incorrectly interpreting short sensor signals as user speech. For example, short sounds (e.g., cough, sneeze, throat clearing, and the like) produced by the user of device 810 may result in short portions of the second data stream (e.g., from a vibration sensor) indicating user speech. However, because these portions may have durations below a threshold duration, these portions are not incorrectly interpreted as user speech. For example, speech detector 852 determines that within a 2 second portion of the second data stream, a 0.3 second portion indicates user speech (e.g., the user sneezed), while the remainder of the 2 second portion indicates no user speech. However, because the duration of the 0.3 second portion is below a threshold duration, speech detector 852 determines that the user is not speaking during the 0.3 second portion. Thus, speech detector 852 determines that the user is not speaking during the entire 2 second portion.

In some examples, determination module 850 only determines whether to provide an output associated with a current (e.g., most recent) notification. For example, if determination module 850 determines that a user is speaking during a time window after the notification is received, after the time window, the notification output is not later provided. For example, determination module 850 does not obtain data stream(s) after the time window to determine again whether to provide the notification output. In some examples, determination module 850 again obtains data stream(s) to determine whether to provide an output associated with a subsequent notification upon receiving an indication of the subsequent notification.

In other examples, determination module 850 determines (e.g., determines again) whether to provide an output associated with a previous notification (previous notification output). In some examples, determination module 850 determines whether to provide a previous notification output in accordance with notifications module 830 receiving an indication of a subsequent (e.g., current) notification. In some examples, determination module 850 determines whether to provide a previous notification output if a relevance score of the previous notification is high, as discussed below with respect to notifications model 854. In some examples, the previous notification output is provided along with a current notification output. In this manner, if a previous notification output is initially not provided (e.g., a user is speaking when (or shortly after) the previous notification was received), the previous notification output may be later provided along with a current notification output.

Providing an previous notification output can be desirable for a variety of reasons. For instance, it may be desirable to provide a previous notification output if the previous notification is short (e.g., a short text message) to quickly provide a user with all unread messages. Thus, in some examples, determination module 850 determines whether a length (e.g., number of words, length of audio) of a previous notification is below a threshold length. In some examples, if the length is determined to be below the threshold length, determination module 850 determines whether to provide the previous notification output according to the techniques discussed herein.

As another example, providing a previous notification output may be desirable to provide context for a current notification output. For example, if a previous message from a sender says “Let's get dinner,” and a current message from the same sender says “at an Italian restaurant,” it may be desirable to output both messages. Thus, in some examples, determination module 850 determines whether a previous notification is relevant to a current notification. In some examples, if a previous notification is determined to be relevant to a current notification, determination module 850 determines whether to provide the previous notification output according to the techniques discussed herein.

Exemplary factors used to determine whether a previous notification is relevant to a current notification include the senders of the notifications (e.g., whether the notifications are from the same sender), the times of the notifications (e.g., whether the notifications are received within a short time period), the contents of the notifications (e.g., whether the notifications relate to a same subject), whether the previous notification has been output (e.g., already read), and the like. For example, determination module 850 determines that the text message “at an Italian restaurant” is relevant to the previous text message “Let's get dinner” because the messages are from a same sender, the messages are received within a short time period (e.g., 1 minute), and/or the messages relate to the subject of dining. Thus, if the previous notification output (“let's get dinner”) is initially not provided, the previous notification output can be later provided with a current notification output (“at an Italian restaurant”). For example, after receiving the message “at an Italian restaurant,” a user is determined to be not speaking, and both the notification outputs “let's get dinner” and “at an Italian restaurant” are sequentially provided.

In some examples, in accordance with a determination that a user is not speaking, notifications module 830 causes a notification output to be provided. In some examples, causing a notification output to be provided includes providing the output with a speaker of an electronic device (e.g., device 810 provides the output with a speaker). In some examples, causing a notification output to be provided includes causing an external electronic device to provide the output (e.g., notifications module 830 causes device 810 to provide the output). In some examples, the output includes an audio output, displayed output (e.g., textual output), haptic output, or a combination thereof. In some examples, a notification output includes a content (e.g., textual content, audio content, video content) of the notification. In some examples, a notification output does not include a content of the notification, but rather includes an audio, haptic, and/or visual alert of the notification (e.g., a chime, vibration, and/or displayed icon).

In FIG. 8A, the user is determined to be not speaking. Specifically, during a 7 second time window after the text message was received, a 2 second duration of no user speech is determined. During that duration, device 810 provides the audio output “Mom says ‘where are you?’”

In some examples, in accordance with a determination that a user is speaking, notifications module 830 forgoes causing a notification output to be provided (e.g., an output including the content of the notification). In some examples, in accordance with a determining that a user is speaking, notifications module 830 causes a second output associated with the notification to be provided (e.g., at device 810). In some examples, the second output is shorter in duration than the output that would be provided if the user were not speaking. For example, an output provided for a currently speaking user includes a short sound, such as a chime, whistle, or bell noise. In contrast, an output provided for a currently non-speaking user includes the entire content (e.g., textual and/or audio content) of a notification, for instance. In this manner, notification outputs can be appropriately adapted based on whether a user is speaking.

FIG. 8C shows an electronic device providing an output associated with a notification when a user of the device is speaking, according to some examples. Specifically, in FIG. 8C, device 800 receives a text message from the user's mom. Device 800 sends an indication of the received notification to device 810 and, in response, device 810 samples data streams from a microphone and a vibration sensor for a 7 second time window. It is determined based on the data streams that the user is speaking during the time window (e.g., no 2 second pause in user speech within the 7 second window). Thus, device 810 forgoes outputting the content of the text message while the user is speaking. Rather, as shown, device 810 provides a short “ding” sound to alert the user of the text message.

In some examples, notifications module 830 causes a notification output to be provided for a maximum duration (e.g., 10, 20, or 30 seconds). In some examples, after the maximum duration has elapsed, notifications module 830 terminates the provision of the notification output. This may prevent device 810 from providing notification outputs for undesirably long durations. For example, if device 800 receives a message including the text of an entire novel, device 810 does not provide audio output of the entire novel.

In some examples, while notifications module 830 causes a current notification output to be provided (e.g., while device 810 provides the notification output), notifications module 830 receives an indication of a second (e.g., subsequent) notification. For example, while device 810 outputs “mom says ‘where are you?’”, device 800 receives a subsequent notification, a text message from Carly asking “what's for dinner?”. In some examples, in accordance with receiving an indication of a subsequent notification, notifications module 830 causes an output associated with the subsequent notification (subsequent notification output) to be provided after providing the current notification output. For example, device 810 provides the spoken output of “Carly says ‘what's for dinner?’” after providing the spoken output of “mom says ‘where are you?’”.

In some examples, causing a subsequent notification output to be provided is performed without determining whether the user is speaking. In other examples, causing a subsequent notification output to be provided is performed in accordance with determining that the user is not speaking. In some examples, only a predetermined number (e.g., 2, 3, 4, or 5) of subsequent notification outputs are provided and/or subsequent notification outputs are only provided for a predetermined duration (e.g., 10, 20, or 30 seconds). This may prevent device 810 from providing notification outputs for an undesirably long duration (e.g., if the user of device 810 is a member of a particularly active group chat).

In some examples, notifications module 830 determines whether a user has already been alerted of a notification. In some examples, in accordance with determining that a user has already been alerted of the notification, notifications module 830 forgoes causing an output associated with the notification to be provided (e.g., at device 810). For example, notifications module 830 does not cause sensor module 840 and/or determination module 850 to obtain data stream(s) and determine whether a user is speaking. In this manner, the same notification may not be repeatedly provided.

In some examples, determining whether a user has already been alerted of a notification includes determining that an external electronic device has provided an output associated with the notification. For example, notifications module 830 determines that a computer (external to devices 800 and 810) has already provided the text message “where are you?” (e.g., via a display). In some examples, in accordance with determining that an external electronic device has provided an output associated with the notification, notifications module 830 forgoes causing further outputs associated with the notification to be provided. For example, notifications module 830 does not cause device 810 to output “mom says ‘where are you?’”.

In some examples, determining whether a user has already been alerted of a notification includes determining that the user has interacted with the notification at an electronic device. In some examples, determining that a user has interacted with the notification includes determining that the user has selected the notification (e.g., selected a message), listened to the notification (e.g., listened to a voice mail), deleted the notification, replied to the notification, viewed the notification (e.g., was looking at and/or touching device 800 when the notification was received), and the like. For example, notifications module 830 determines that the user has already selected the text message “where are you?” on device 800. In some examples, in accordance with determining that the user has interacted with a notification, notifications module 830 forgoes causing an output associated with the notification to be provided.

Returning to FIG. 8B, system 820 further includes termination module 860. Termination module 860 is configured to terminate (e.g., cease) the provision of notification outputs responsive to various user inputs. Thus, users may quickly terminate unwanted notification outputs at device 810 according to the techniques discussed below.

In some examples, while device 810 provides a notification output, termination module 860 (e.g., implemented on device 810) detects a speech input. In some examples, detecting a speech input includes determining that a user is speaking according to the techniques discussed herein. In some examples, in response to detecting a speech input, termination module 860 causes device 810 to cease providing notification output. In this manner, a user may quickly stop unwanted notification outputs by speaking to device 810.

In some examples, while device 810 provides a notification output, termination module 860 detects a signal indicating device removal. For example, accelerometer(s) of device 810 detect a signal indicating removal of device 810 from a user's ear and sends the signal to termination module 860. In some examples, in response to detecting such signal, termination module 860 causes device 810 to cease providing notification output. In this manner, a user may quickly stop unwanted notification outputs by removing device 810 from the user's ear (or another position occupied by device 810).

In some examples, while device 810 provides an output associated with a notification, termination module 860 detects a predetermined gesture performed at the device. Exemplary predetermined gestures include a tap gesture, a double-tap gesture, a single finger swipe gesture, a double finger swipe gesture, and the like. In some examples, termination module 860 detects such gestures using pressure sensor(s), touch sensor(s), and/or accelerometer(s) included in device 810. In some examples, in response to detecting a predetermined gesture, termination module 860 causes device 810 to cease providing notification output. In this manner, a user may quickly stop unwanted notification outputs by performing a gesture (e.g., a double tap) at device 810.

As discussed, one aspect of the present disclosure relates to determining whether to provide a notification output by determining whether a user is speaking. However, whether a user is speaking may be only one of many factors considered when determining whether to provide a notification output. For example, determining whether to provide a notification output may be alternatively or additionally based on a determined importance of the notification (e.g., its urgency) and/or a determined timeliness of the notification (e.g., whether it is currently a good time to provide the notification output), as discussed below.

In some examples, determination module 850 includes notifications model 854. In some examples, notifications model 854 is configured to determine an importance of a notification and/or a timeliness of a notification according to the techniques discussed below. In some examples, notifications model 854 includes one or more neural networks (e.g., recurrent neural networks (RNNs), convolutional neural networks (CNNS), and the like) and/or other machine learned models trained to determine the importance and/or timeliness of notifications.

In some examples, notifications model 854 determines an importance score of a notification that represents the notification's importance. In some examples, notifications model 854 determines an importance score of a notification based on context information associated with the notification (notification context). Exemplary notification context includes the sender of the notification, whether the user has previously received notifications from the sender, previous user responses to notifications from the sender, the time of the notification, the content of the notification, the relevance of the notification to a previous notification, the length of the notification, the type of the notification (e.g., text message, email, application notification), the relevance of the notification to a user's current context, user notification settings, and the like. In some examples, notifications model 854 determines such context information and uses such context information (or a combination of such context information) to determine and/or adjust an importance score of a notification.

For example, if notifications model 854 determines that the sender of a notification is a user favorite contact (e.g., the user's mom), an importance score of the notification is increased (e.g., above a threshold). As another example, if notifications model 854 determines that the sender of a notification is not a user favorite contact (e.g., an unknown source, a user blocked spam email provider, etc.), an importance score of the notification is decreased (e.g., below a threshold). As another example, notifications model 854 performs content and/or sentiment analysis on the content of a notification to determine an importance score of the notification. For example, if sentiment and/or content analysis indicates that a notification is urgent (e.g., includes terms like “now,” “important,” “urgent,” etc.), an importance score of the notification is increased. As another example, if notifications model 854 determines that a notification is relevant to a previous notification (e.g., the notifications relate to a same subject and/or are from a same sender), an importance score of the notification is increased. As another example, if notifications model 854 determines that a length of a notification is short (e.g., below a threshold number of words, less than a threshold time), an importance score of the notification is increased. As another example, if notifications model 854 determines that a type of the notification is a predetermined type (e.g., text message), an importance score of the notification is increased. As another example, if notifications model 854 determines that that a type of the notification is not a predetermined type (e.g., an email, application notification), an importance score of the notification is decreased.

As another example, notifications model 854 performs content analysis on a notification to determine whether the notification is relevant to a user's current context (e.g., current location, current activity being performed, and the like). For example, if a user's current context indicates that he or she is waiting for a flight (e.g., as determined by user location and/or calendar data) and a notification is determined to be relevant to the flight (e.g., includes a flight gate change information) an importance score of the notification is increased. As another example, if a user's current context indicates that he or she is in a workout session (e.g., as determined based on a workout application being initiated), and the notification is determined to be relevant to the workout (e.g., includes information relating to calories burned), an importance score of the notification is increased. As another example, if a user notification setting indicates a preference for a certain type of notification (e.g., text messages), importance scores of those types of notifications are increased.

In some examples, notifications model 854 determines whether an importance score for a notification exceeds (or does not exceed) one or more thresholds. For example, an importance score below a lower threshold (low importance score) indicates that the corresponding notification is not important and an importance score above an upper threshold (high importance score) indicates that the corresponding notification is important. In some examples, notifications model 854 causes notifications module 830 to provide an output associated with a notification in accordance with determining that an importance score of the notification exceeds a threshold. For example, in FIG. 8A, the text message from the user's mom asking “where are you?” is determined to have a high importance score because (1) the user's mom is a user favorite contact and/or (2) the user has previously received notifications from his mom.

In some examples, notifications model 854 determines a timeliness score of a notification that represents the notification's timeliness. In some examples, notifications model 854 determines a timeliness score of a notification based on context information associated with the a user (user context). Exemplary user context includes a location of a user, a user notification setting, a device setting (e.g. low power mode, do not disturb mode), a rate of travel of a user, a current activity the user is engaged in (e.g., driving, turning while driving, in a meeting, in a workout session, listening to music, watching a movie), a state of the user (e.g., sleeping, awake), how recently a user terminated provided notification outputs (as discussed above), whether a user is speaking (as discussed above), whether another device has provided a notification output, whether a user is in a conversation, and the like. In some examples, notifications model 854 determines such context information and uses such context information (or a combination of such context information) to determine and/or adjust a timeliness score of a notification.

For example, if notifications model 854 determines that device 800 is in a do not disturb mode, a timeliness score of a notification is decreased (e.g., below a threshold). As another example, if notifications model 854 determines that a user is currently engaged in a first set of predetermined activities (e.g., in a meeting as determined from calendar data, in a workout session as determined from a workout application being initiated), a timeliness score of a notification is decreased. As another example, if notifications model 854 determines that a user is currently is currently engaged in a second set of predetermined activities (e.g., listening to music) a timeliness score of a notification is increased (e.g., above a threshold). As another example, if it is determined that a user recently (e.g., a predetermined duration ago) terminated a previous notification output, a timeliness score of a notification is decreased. As another example, if it is determined that a user is speaking (as discussed above), a timeliness score of a notification is decreased. As another example, if it is determined that the user is not speaking, a timeliness score of a notification is increased.

As another example, notifications model 854 collects and analyzes information from one or more sensors of sensor module 840 and determines whether the information indicates that the user is in a conversation. For example, notifications model 854 determines the times during which a user is or is not speaking according to the above discussed techniques and determines whether the times are consistent with user conversation (e.g., a time duration having alternating periods of user speech and no user speech). As another example, notifications model 854 determines whether a direction of sound is directed towards a user, whether the sound includes human speech, and/or a proximity of a source of the sound. In some examples, notifications model 854 collects and analyzes the information before, during, or after a notification is received (e.g., for a predetermined duration) or regardless of whether a notification is received (e.g., continuously collects the information). In some examples, if the information indicates that the user is in conversation, a timeliness score of a notification is increased. In some examples, if the information indicates that the user is not in conversation, a timeliness score of a notification is decreased.

In some examples, notifications model 854 determines whether a timeliness score of a notification exceeds (or does not exceed) one or more thresholds. For example, a timeliness score below a lower threshold (low timeliness score) indicates that the corresponding notification is not timely and a timeliness score above an upper threshold (high timeliness score) indicates that the corresponding notification is timely. In some examples, notifications model 854 causes notifications module 830 to provide an output associated with a notification in accordance with determining that a timeliness score of the notification exceeds a threshold.

In some examples, notifications model 854 determines a relevance score of a notification based on a timeliness score of the notification and/or an importance score of the notification. Thus, in some examples, notifications model 854 combines determined importance and timeliness scores of a notification to determine an aggregate relevance score indicating whether a notification should be provided (e.g., indicating a notification's current relevance). For example, a relevance score above a threshold (high relevance score) indicates that a corresponding notification output should be provided, while a relevance score below a threshold (low relevance score) indicates that a corresponding notification output should not be provided. Thus, in some examples, notifications model 854 causes notifications module 830 to provide an output associated with a notification in accordance with determining that a relevance score of the notification exceeds a threshold. Determining a relevance score based on both importance and timeliness scores may improve determination of when to provide notification outputs. For example, an undesirable notification from a spam provider may be determined as timely (e.g., the user is not in a meeting) but not important. Thus, a relevance score of the undesirable notification is determined to be low, so an output of the spam message is not provided.

In some examples, notifications model 854 includes training module 856. Training module 856 is configured to train notifications model 854 to determine whether a notification is important, timely, and/or relevant (e.g., to determine importance, timeliness, and/or relevance scores). In some examples, training module 856 trains notification model 854 using data obtained from many users. In some examples, such data indicates appropriate (and/or inappropriate) user contexts to provide notification outputs. For example, such data indicates that users generally do not want notification outputs while in a meeting and/or generally want notification outputs while listening to music. Accordingly, training notification model 854 using data obtained from many users allows improved determination of scores (e.g., importance scores, timeliness scores, relevance scores) of notifications. For example, notification model 854 is trained to determine a high timeliness score of a notification when it is determined that a user is listening to music (e.g., because the training data indicates that most users want notification outputs while listening to music).

In some examples, training module 856 trains notification model 854 using data obtained for a particular user (e.g., the user of device's 800 and 810). In some examples, such data indicates appropriate (and/or inappropriate) user contexts to provide notification outputs for a particular user. Accordingly, training notification model 854 using such data allows personalized determination of whether to provide a notification output. For example, if such data indicates that the user of device 800 does not want to notification outputs while listening to music, notification model 854 is trained to determine a low timeliness score of a notification when it is determined that the user is listening to music.

In some examples, training module 856 collects user engagement and data trains notification model 854 using the data. User engagement data includes data relating to user interaction with a notification (and/or notification output) at devices 800 and/or 810. For example, user engagement data indicates whether a user has interacted with a notification (e.g., replied to a notification, deleted a notification, dismissed a notification) and/or whether a user has terminated a notification output. Training notifications model 854 using user engagement data may improve determination of whether to provide a notification output for a particular user.

For example, suppose notifications model 854 determines based on context information that a notification output should not be provided (e.g., determines a low relevance score of the notification). However, user engagement data collected by training module 856 indicates that the user interacted with the notification (e.g., replied to it). This may indicate that notifications model 854 should have determined to provide the notification output based on the context information (e.g., should have determined a high relevance score). Thus, based on such user engagement data, notifications model 854 is trained to determine high relevance scores of subsequent notifications associated with contexts matching (or similar to) the context. In this manner, device 810 can provide notification outputs for desirable subsequent notifications.

As another example, suppose notifications model 854 determines based on context information that a notification output should be provided (e.g., determines a high relevance score for the notification). Device 810 thus provides the notification output. However, user engagement data collected by training module 856 indicates that while device 810 provided the notification output, the user terminated the notification output. This may indicate that notifications model 854 should have not determined to provide the notification output based on the context information (e.g., should have determined a low relevance score). Thus, based on such user engagement data, notifications model 854 is trained to determine low relevance scores of subsequent notifications associated with contexts matching (or similar to) the context. In this manner, device 810 may not provide notification outputs for undesirable subsequent notifications.

In some examples, a score of a notification (e.g., importance score, timeliness score, relevance score) affects whether it is determined that a user is speaking. For example, when notifications module 830 receives an indication of a notification, notifications model 854 determines a score of the notification. In some examples, in accordance with determining that a score of a notification is below a threshold, it is not determined whether a user is speaking. For example, sensor module 840 does not obtain data stream(s) and determination module 850 does not determine whether the data stream(s) indicate user speech. In some examples, in accordance with determining that a score of a notification is above a threshold, it is determined whether a user is speaking, as discussed above. In this manner, in some examples, only highly relevant notifications cause devices 800 and/or 810 to obtain data streams to determine whether a user is speaking (and thus whether to provide a notification output).

In some examples, a score of a notification affects how it is determined whether a user is speaking. For example, a time window for which a data stream is obtained is based on a determined relevance score of a notification. For example, sensor module 840 adjusts the time window based on a determined relevance score for a notification. For example, sensor module 840 extends the time window if a relevance score of a notification is high (e.g., compared to if the relevance score were not high). This extends the time window during which highly relevant notification outputs can be provided, which in turn may increase the chance of providing such notification outputs. As another example, the predetermined duration used to determine that a user is not speaking is based on a determined relevance score for a notification. For example, determination module 850 adjusts the predetermined duration based on a relevance score of a notification. For example, determination module 850 decreases the predetermined duration if a relevance score of the notification is high (e.g., compared to if the relevance score were not high). In this manner, highly relevant notification outputs may be provided during shorter pauses in user speech, increasing the chance of providing such outputs.

In some examples, a score of a notification affects how a notification output is provided. For example, a notification output can be provided with different volumes, different speeds, different tones, different colors, different fonts, different sizes, different versions (e.g., a shorter version including only the source of the notification and/or only the first sentence of the notification), and the like. For example, if a score of a notification is determined to be high, notifications module 830 causes the notification output to be provided with a higher volume and/or causes the entire content of the notification to be provided. As another example, if a score of a notification is determined to be low, notifications module 830 causes the notification output to be provided with a lower volume and/or causes a shorter version of the notification output to be provided (e.g., provides only the name of the sender).

In some examples, a score of a notification affects when a notification output is provided. For example, if an importance score of a notification is high, but a current timeliness score of the notification is low, notifications module 830 waits until the timeliness score is high to provide the notification output. In this manner, notifications module 830 can wait for appropriate times to provide important notification outputs. For example, if a user is currently in a meeting and receives an important notification, notifications model 854 determines that a timeless score of the notification is low. However, after the user is done with the meeting, notifications model 854 determines that the timeliness score is now high. Notifications module 830 thus causes the notification output to be provided after the meeting. As another example, if a user is currently speaking and receives an important notification, notifications model 854 determines that a timeliness score of the notification is low (e.g., because the user is speaking). However, when the user is not speaking, notifications model 854 determines that the timeliness score is now high. Notifications module 830 thus causes the notification output to the provided when the user is done speaking.

5. Responding to Spoken Notifications

FIG. 9A shows a flow diagram of a process for responding to spoken notifications, according to some examples. In FIG. 9A, devices 810, 800, and digital assistant (DA) server 900 interact to respond to spoken notifications. In some examples, DA server 900 is implemented using digital assistant server 106 discussed above with respect to FIG. 1. In some examples, devices 810 and 800 are client devices and communicate with DA server 900 and/or each other though one or more networks, e.g., as shown in FIG. 1.

Although some processes below are described as being performed by particular devices (e.g., devices 800, 810, 900), such processes can be performed at other devices and can be performed at more than one device (e.g., at devices 800 and 900). Further, the processes below may be performed by any system or device, or component thereof, described herein, including but not limited to device 800, device 810, DA server 900, and/or system 820.

In some examples, an output associated with a received notification (notification output) is caused to be provided (e.g., by notifications module 830). For example, as shown in FIG. 9A, device 810 provides a notification output (e.g., with a device speaker). In some examples, device 800 causes device 810 to provide a notification output.

FIG. 9B shows device 810 providing a notification output, according to some examples. Specifically, in FIG. 9B, device 800 (e.g., a user's phone) receives a text message from the user's mom asking “where are you?” Device 800 causes device 810 to provide the audio output “Mom says ‘where are you?’” according to the above discussed techniques.

Returning to FIG. 9A, in some examples, after a notification output is provided, one or more data streams from one or more sensors are obtained (e.g., by sensor module 840). For example, as shown in FIG. 9A, device 810 obtains data stream(s) from sensor(s) included in device 810. In some examples, as shown in FIG. 9A, device 810 sends (e.g., streams) the data stream(s) to device 800 and device 800 obtains the data stream(s).

In some examples, at least a portion of the data stream(s) include data representing a received speech input requesting performance of a task associated with a notification. Obtaining data stream(s) can thus allow a user to respond to a notification output. For example, when the notification output is “Mom says ‘where are you?’”, data representing the received speech input “reply I'm at home” may be obtained. The speech input may then be processed to perform the task of replying to the user's mom.

FIG. 9C shows a user responding to a notification output, according to some examples. Specifically, in FIG. 9C, the user provides the speech input “reply I'm at home” after device 810 provides the audio output “Mom says ‘where are you?’” Device 810 obtains data stream(s) including data representing the speech input.

In some examples, a speech input does not include a trigger phrase for initiating a digital assistant (e.g., “Wake up,” “Hey Siri,” “Hey Assistant,” and the like). In this manner, a user may efficiently respond to a notification output without needing to initiate a digital assistant with a trigger phrase.

In some examples, obtaining data streams includes concurrently obtaining the data streams for a predetermined duration. The predetermined duration can thus represent a time window during which device 810 listens for speech input responding to a notification output. For example, if no user speech is detected during the time window, device 810 ceases listening for speech input (e.g., ceases obtaining data stream(s)).

In some examples, sensor module 840 adjusts the time window based on a notification. For example, if a score (e.g., relevance score) of the notification is determined to be high (e.g., by notifications model 854), sensor module 840 extends the time window (e.g., compared to if the score was not high). This may advantageously extend the time window during which users may respond to relevant notifications (e.g., because users may wish to respond to relevant notifications). As another example, if notifications model 854 determines that a length of a notification is above a threshold (e.g., the notification includes greater than a threshold number of words), sensor module 840 extends the time window. This may extend the time window during which users may respond to long notifications (e.g., because users may take longer to respond to long notifications).

In some examples, it is determined, based on obtained data stream(s), whether a user associated with an electronic device (e.g., devices 800 and 810) is speaking (e.g., by determination module 850). Determining whether a user is speaking is performed according to any of the techniques discussed above with respect to FIGS. 8A-8C. For example, determining whether a user is speaking includes determining whether a data stream obtained from a vibration sensor (e.g., bone conduction microphone) indicates user speech for a predetermined duration (e.g., 0.2, 0.3, 0.4, or 0.5 seconds). As shown in FIG. 9A, in some examples, device 800 determines whether a user is speaking based on data stream(s) obtained from device 810. In other examples, device 810 determines whether a user is speaking (e.g., determination module 850 is implemented at least partially on device 810). In the example of FIG. 9C, it is determined that the user is speaking based on the speech input “reply I'm at home.”

In some examples, in accordance with a determination that a user is speaking, at least a portion of obtained data stream(s) are provided to an external electronic device. In some examples, the external electronic device is external to the device that determined that the user is speaking. In some examples, the portion includes a data stream obtained from a speech sensor (e.g., microphone). In some examples, the portion includes data representing a received speech input requesting performance of a task associated with a notification (e.g., “reply I'm home”). Exemplary tasks associated with a notification include replying to a notification, forwarding a notification, deleting a notification, flagging a notification as important, calling a sender of the notification, repeating the notification, marking a notification as read/unread, retrieving information about the notification (e.g., the sender, time), and the like.

In some examples, the external electronic device is DA server 900. For example, as shown in FIG. 9A, device 800 provides data representing a received speech input (e.g., received from device 810) to DA server 900 (e.g., via one or more networks, as shown in FIG. 1). DA server 900 thus receives the data from device 800. In some examples, the external electronic device is device 800. For example, device 810 provides data representing a received speech input to device 800 and device 800 receives the data. In some examples, device 800 further sends the data to a second external electronic device (e.g., DA server 900).

Providing data representing a received speech input to an external electronic device allows the speech input to be processed to initiate a task associated with a notification. For example, as discussed below, device 800 and/or DA server 900 processes the speech input “reply I'm at home” to initiate the task of replying to the user's mom. Further, providing such data in accordance with a determination that a user is speaking may prevent audio data (e.g., background speech) obtained by user devices 800 and/or 810 from being sent to other devices (e.g., DA server 900) when a user is not speaking. Operating user devices 800 and/or 810 in this manner may improve user privacy, as audio data obtained at user devices may not be automatically sent to other devices. Rather, the audio data may only be sent when they indicate user speech (e.g., that requests performance of a task associated with a notification output).

In some examples, in accordance with a determination that a user is not speaking, providing data stream(s) to an external electronic device is forgone. In some examples, determining that a user is not speaking includes determining that data stream(s) indicate no user speech for a predetermined duration (e.g., the time window during which device 810 listens for speech input responding to a notification output), according to the above discussed techniques. In some examples, in accordance with a determination that a user is not speaking, data stream(s) are discarded (e.g., by device 800 and/or 810). Operating devices 800 and/or 810 in this manner may improve user privacy. Specifically, as discussed, audio data obtained at user devices 800 and/or 810 may only be sent to other devices when the data indicate user speech. The audio data may be discarded if the data do not indicate user speech.

In some examples, it is determined whether a speech input is associated with an intent to perform an action associated with a notification. In some examples, such determination includes determining an intent based on the speech input and determining whether the intent is an intent to perform an action associated with a notification. In some examples, the intent(s) to perform an action associated with a notification are predetermined based on a type and/or content of the notification. For example, a message notification (e.g., text message, instant message, email) has corresponding intents of replying to the notification, forwarding the notification, deleting the notification, flagging the notification as important, calling a sender of the notification, repeating the notification, marking the notification as read/unread, retrieving information about the notification (e.g., the sender, time), and the like. However, the intents of retrieving weather information and performing a web search, for instance, are not intents corresponding to a message notification. As another example, a weather notification (e.g., provided by a weather application) has a corresponding intent of retrieving further weather information (e.g., associated with the speech input “what's the weather like there Thursday?”). However, the intent of replying to a message is not an intent corresponding to a weather notification. In the example of FIG. 9C, it is determined that the speech input “reply ‘I'm at home’” is associated with an intent to perform an action associated with the message notification “where are you?”

In some examples, as shown in FIG. 9A, DA server 900 determines whether a speech input is associated with an intent to perform an action associated with a notification (e.g., using natural language processing module 732). In other examples, device 800 and/or 810 determines whether a speech input is associated with an intent to perform an action associated with a notification (e.g., using natural language processing module 732 implemented on device 800 and/or 810).

In some examples, in accordance with determining that a speech input is associated with an intent to perform an action associated with a notification, a task is initiated. In some examples, initiating a task includes performing the task (e.g., replying “I'm home” to the user's mom). In some examples, the task is initiated based on a determined intent (e.g., determined based on the speech input). For example, a task of replying to the text message asking “where are you?” is initiated based on the determined intent of replying to a notification. In some examples, as shown in FIG. 9A, DA server 900 initiates the task (e.g., using task flow processing module 736). In other examples, device 800 and/or 810 initiates the task (e.g., using task flow processing module 736 implemented on device 800 and/or 810).

Initiating a task in this manner can allow only tasks relevant to provided notification outputs to be initiated. For example, suppose the user in FIG. 9C asks “what's the weather like?” to a friend after device 810 provides the notification output “mom says ‘where are you?’” The speech input “what's the weather like?” is intended for the user's friend, not a digital assistant. Although the speech input may still be processed to determine an intent, the determined intent (e.g., getting weather information) is not an intent to perform an action associated with the notification output. Thus, no task based on the intent is initiated, and no results based on the task are provided to the user. For example, device 810 does not undesirably output “it's 45 degrees and raining” responsive to the user asking “what's the weather like?” to a friend.

In some examples, an indication that a task has been initiated is received. In some examples, device 800 receives an indication that a task has been initiated from DA server 900. For example, DA server 900 generates an indication that a task has been initiated (e.g., instructions to perform a task, such as replying to a text message). In some examples, as shown in FIG. 9A, DA server 900 sends an indication that a task has been initiated to device 800. In some examples, device 800 performs a task based on the indication (e.g., replies to the text message) and generates a response based on performing the task (e.g., “ok, I replied ‘I'm at home’”), according to the techniques discussed with respect to FIGS. 7A-7C.

In some examples, device 810 receives an indication that a task has been initiated from device 800. For example, DA server 900 generates a result based on an initiation of the task. In some examples, DA server 900 sends the result to device 800. For example, DA server 900 generates instructions to reply to a text message and sends the result to device 800. In some examples, device 800 uses the result to generate an indication that a task has been initiated. For example, device 800 executes the instructions to reply to the text message and generates an indication that device 800 has replied to the text message (e.g., the response “ok I replied I'm at home”). In some examples, device 800 sends an indication that the task has been initiated to device 810.

In some examples, an output based on a received indication that a task has been initiated is caused to be provided. In some examples, an output based on a received indication includes an audio output, textual output, and/or haptic output indicating that a task has been initiated. For example, when device 800 receives the indication from DA server 900, device 800 causes device 810 to provide an output based on the received indication, as shown in FIG. 9A. For example, device 800 causes device 810 to provide a response generated based on performing a task.

FIG. 9D shows device 810 providing an audio output indicating that a task has been initiated, according to some examples. Specifically, consistent with the above-described techniques, device 810 provides the audio output “ok I replied ‘I'm at home’” after the user says “reply I'm at home” in FIG. 9C.

In some examples, when device 810 receives an indication that a task has been initiated from device 800, device 810 causes an output based on the received indication to be provided. For example, in FIG. 9D, device 810 provides an output (e.g., “ok I replied I'm at home”) with a speaker of the device.

6. Process for Providing Notifications

FIGS. 10A-10E illustrate process 1000 for providing notifications, according to various examples. Process 1000 is performed, for example, using one or more electronic devices implementing a digital assistant. In some examples, process 1000 is performed using a client-server system (e.g., system 100), and the blocks of process 1000 are divided up in any manner between the server (e.g., DA server 106) and a client device. In other examples, the blocks of process 1000 are divided up between the server and multiple client devices (e.g., a mobile phone and a smart watch). Thus, while portions of process 1000 are described herein as being performed by particular devices of a client-server system, it will be appreciated that process 1000 is not so limited. In other examples, process 1000 is performed using only a client device (e.g., user device 104) or only multiple client devices. In process 1000, some blocks are, optionally, combined, the order of some blocks is, optionally, changed, and some blocks are, optionally, omitted. In some examples, additional steps may be performed in combination with the process 1000.

At block 1002, an indication of a notification is received (e.g., by notifications module 830). In some examples, receiving the indication of the notification includes receiving the indication from an external electronic device, the notification being received at the external electronic device, as shown in block 1004. In some examples, receiving the indication of the notification includes receiving the notification at an electronic device, as shown in block 1006.

At block 1008, in accordance with receiving the indication of the notification: one or more data streams from one or more sensors are obtained (e.g., by sensor module 840). In some examples, obtaining the one or more data streams includes concurrently obtaining the one or more data streams for a predetermined duration, as shown in block 1010. In some examples, the predetermined duration is based on a determined relevance score of the notification. In some examples, the electronic device includes the one or more sensors. In some examples, the electronic device comprises a headset. In some examples, obtaining the one or more data streams includes obtaining the one or more data streams from an external electronic device including the one or more sensors, as shown in block 1012. In some examples, the one or more sensors include a microphone and a vibration sensor. In some examples, the one or more data streams include a first data stream obtained from the microphone and a second data stream obtained from the vibration sensor.

At block 1014, it is determined, based on the one or more data streams, whether a user associated with the electronic device is speaking (e.g., by determination module 850). In some examples, determining that the user is not speaking includes determining, based on the one or more data streams, that the user is not speaking for a second predetermined duration, as shown in block 1016. In some examples, determining whether the user associated with the electronic device is speaking includes determining that the first data stream indicates that the user is speaking, as shown in block 1018. In some examples, determining whether the user associated with the electronic device is speaking includes determining that the second data stream indicates that the user is speaking, as shown in block 1020. In some examples, determining whether the user associated with the electronic device is speaking includes in accordance with determining that the first data stream indicates that the user is speaking and in accordance with determining that the second data stream indicates that the user is speaking, determining that the user is speaking, as shown in block 1022.

In some examples, determining whether the user associated with the electronic device is speaking includes determining that the first data stream indicates that the user is speaking, as shown in block 1024. In some examples, determining whether the user associated with the electronic device is speaking includes determining that the second data stream indicates that the user is not speaking, as shown in block 1026. In some examples, determining whether the user associated with the electronic device is speaking includes in accordance with determining that the first data stream indicates that the user is speaking and determining that the second data stream indicates that the user is not speaking, determining that the user is not speaking, as shown in block 1028. In some examples, determining that the first data stream indicates that the user is speaking includes determining that a first portion of the first data stream indicates that the user is speaking. In some examples, determining that the second data stream indicates that the user is not speaking includes determining that a second portion of the second data stream indicates that the user is not speaking. In some examples, the first portion and the second portion have a same duration. In some examples, the first portion and the second portion are obtained at a same time.

In some examples, determining whether the user associated with the electronic device is speaking includes determining that the one or more data streams include a third portion indicating that the user is speaking, as shown in block 1030. In some examples, determining whether the user associated with the electronic device is speaking includes determining that a duration of the third portion is below a threshold duration, as shown in block 1032. In some examples, determining whether the user associated with the electronic device is speaking includes in accordance with a determination that the duration of the third portion is below the threshold duration, determining that the user is not speaking, as shown in block 1034.

At block 1036, in accordance with a determination that the user is not speaking: an output associated with the notification is caused to be provided (e.g., by notifications module 830). In some examples, the output associated with the notification includes a content of the notification. In some examples, causing the output associated with the notification to be provided includes providing the output with a speaker of the electronic device, as shown in block 1038. In some examples, causing the output associated with the notification to be provided includes causing the external electronic device to provide the output, as shown in block 1040.

In some examples, in accordance with a determination that the user is speaking: causing the output associated with the notification to be provided is forgone (e.g., by notifications module 830), as shown in block 1042. In some examples, in accordance with a determination that the user is speaking: a second output associated with the notification is caused to be provided (e.g., by notifications module 830), the second output being shorter in duration than the first output, as shown in block 1044.

In some examples, while providing the output, a speech input is detected (e.g., by termination module 860), as shown in block 1046. In some examples, in response to detecting the speech input, the output is terminated (e.g., by termination module 860), as shown in block 1048.

In some examples, while providing the output, a signal indicative of device removal is detected (e.g., by termination module 860), as shown in block 1050. In some examples, in response to detecting the signal indicative of device removal, the output is terminated (e.g., by termination module 860), as shown in block 1052.

In some examples, while providing the output, a predetermined gesture performed at the electronic device is detected (e.g., by termination module 860), as shown in block 1054. In some examples, in response to detecting the predetermined gesture performed at the electronic device, the output is terminated (e.g., by termination module 860), as shown in block 1056.

In some examples, while causing the output associated with the notification to be provided, an indication of a second notification is received (e.g., by notifications module 830), as shown in block 1058. In some examples, in accordance with receiving the indication of the second notification: an output associated with the second notification is caused to be provided (e.g., by notifications module 830) after the output associated with the notification is provided, as shown in block 1060.

In some examples, it is determined whether a second external electronic device has provided a second output associated with the notification (e.g., by determination module 850), as shown in block 1062. In some examples, in accordance with determining that the second external electronic device has provided the second output associated with the notification: causing the output associated with the notification to be provided is forgone, as shown in block 1064. In some examples, causing the output associated with the notification to be provided is performed in accordance with determining that the second external electronic device has not provided the second output associated with the notification.

In some examples, an importance score of the notification based on context information associated with the notification is determined (e.g., by notifications model 854), as shown in block 1066. In some examples, it is determined whether the importance score exceeds a first threshold (e.g., by notifications model 854), as shown in block 1068. In some examples, causing the output associated with the notification to be provided is performed in accordance with determining that the importance score exceeds the first threshold.

In some examples, a timeliness score of the notification based on context information associated with the user is determined (e.g., by notifications model 854), as shown in block 1070. In some examples, it is determined whether the timeliness score exceeds a second threshold (e.g., by notifications model 854), as shown in block 1072. In some examples, causing the output associated with the notification to be provided is performed in accordance with determining that the timeliness score exceeds the second threshold.

The operations described above with reference to FIGS. 10A-E are optionally implemented by components depicted in FIGS. 1-4, 6A-6B, 7A-7C, 8A-8C, and 9A-9D. For example, the operations of process 1000 may be implemented by system 820, device 800, device 810, and/or DA server 900, or any component thereof. It would be clear to a person having ordinary skill in the art how other processes are implemented based on the components depicted in FIGS. 1-4, 6A-B, 7A-C, 8A-C, and 9A-D.

7. Process for Responding to Notifications

FIGS. 11A-11D illustrate process 1100 for responding to notifications, according to various examples. Process 1100 is performed, for example, using one or more electronic devices implementing a digital assistant. In some examples, process 1100 is performed using a client-server system (e.g., system 100), and the blocks of process 1100 are divided up in any manner between the server (e.g., DA server 106) and a client device. In other examples, the blocks of process 1100 are divided up between the server and multiple client devices (e.g., a mobile phone and a smart watch). Thus, while portions of process 1100 are described herein as being performed by particular devices of a client-server system, it will be appreciated that process 1100 is not so limited. In other examples, process 1100 is performed using only a client device (e.g., user device 104) or only multiple client devices. In process 1100, some blocks are, optionally, combined, the order of some blocks is, optionally, changed, and some blocks are, optionally, omitted. In some examples, additional steps may be performed in combination with the process 1100.

At block 1102, a first output associated with a received notification is caused to be provided (e.g., by notifications module 830). In some examples, causing the first output to be provided includes providing the first output with a speaker of the electronic device (e.g., device 810), as shown in block 1104. In some examples, the electronic device comprises a headset. In some examples, causing the first output to be provided includes causing a second external electronic device (e.g., 810) to provide the first output, as shown in block 1106.

At block 1108, after the first output is provided: one or more data streams from one or more sensors are obtained (e.g., by sensor module 840). In some examples, the one or more sensors include a microphone and a vibration sensor. In some examples, the one or more data streams include a first data stream obtained from the microphone and a second data stream obtained from the vibration sensor. In some examples, the electronic device (e.g., 810) includes the one or more sensors. In some examples, the second external electronic device (e.g., 810) includes the one or more sensors.

In some examples, obtaining the one or more data streams includes concurrently obtaining the one or more data streams for a predetermined duration, as shown in block 1110. In some examples, obtaining the one or more data streams includes obtaining the one or more data streams from the second external electronic device (e.g., device 810), as shown in block 1112.

At block 1114, it is determined based on the one or more data streams, whether a user associated with the electronic device is speaking (e.g., by determination module 850). In some examples, determining whether the user is speaking includes determining whether the second data stream indicates that the user is speaking for a second predetermined duration, as shown in block 1116. In some examples, determining whether the user is speaking includes determining that the second data stream includes a portion indicating that the user is speaking, as shown in block 1118. In some examples, determining whether the user is speaking includes determining whether a duration of the portion indicating that the user is speaking is below a threshold duration, as shown in block 1120. In some examples, determining whether the user is speaking includes in accordance with determining that the duration is below the threshold duration, determining that the user is not speaking, as shown in block 1122.

In some examples, determining whether the user is speaking includes determining that the first data stream indicates that the user is speaking, as shown in block 1124. In some examples, determining whether the user is speaking includes determining that the second data stream indicates that the user is not speaking, as shown in block 1126. In some examples, determining whether the user is speaking includes in accordance with determining that the first data stream indicates that the user is speaking and determining that the second data stream indicates that the user is not speaking, determining that the user is not speaking, as shown in block 1128.

At block 1130, in accordance with a determination that the user is speaking: at least a portion of the one or more data streams to is provided to an external electronic device (e.g., 800, 900), the portion including data representing a received speech input requesting performance of a task associated with the notification. In some examples, the speech input does not include a trigger phrase for initiating a digital assistant.

In some examples, at the external electronic device (e.g., 800): the data representing the received speech input requesting performance of the task associated with the notification is received from the electronic device (e.g., 810), as shown in block 1132. In some examples, at the external electronic device (e.g., 800): the data is sent to a second external electronic device (e.g., 900), as shown in block 1134. In some examples, at the external electronic device (e.g., 800): in accordance with sending the data to the second external electronic device: a result based on the initiation of the task is received from the second external electronic device, as shown in block 1136. In some examples, at the external electronic device: in accordance with receiving the result based on the initiation of the task: the indication that the task has been initiated is sent to the electronic device (e.g., 810), as shown in block 1138.

In some examples, at the external electronic device (e.g., 900): the data representing the received speech input requesting performance of the task associated with the notification is received from the electronic device (e.g., 800), as shown in block 1040. In some examples, at the external electronic device: it is determined whether the speech input is associated with an intent to perform an action associated with the notification, as shown in block 1042. In some examples, at the external electronic device: in accordance with determining that the speech input is associated with an intent to perform an action associated with the notification: the task is initiated, as shown in block 1144. In some examples, at the external electronic device: in accordance with determining that the speech input is associated with an intent to perform an action associated with the notification, the indication that the task has been initiated is sent to the electronic device (e.g., 800), as shown in block 1146.

In some examples, in accordance with determining that the user is not speaking: providing the one or more data streams to the external electronic device is forgone, as shown in block 1148. In some examples, in accordance with determining that the user is not speaking: the one or more data streams are discarded, as shown in block 1150.

At block 1152, an indication that the task has been initiated is received from the external electronic device (e.g., 800 or 900).

At block 1154, a second output based on the received indication is caused to be provided (e.g., by notifications module 830). In some examples, causing the second output to be provided includes providing the second output with the speaker of the electronic device (e.g., 810), as shown in block 1156. In some examples, causing the second output to be provided includes causing the second external electronic device (e.g., 810) to provide the second output, as shown in block 1158.

The operations described above with reference to FIGS. 11A-D are optionally implemented by components depicted in FIGS. 1-4, 6A-6B, 7A-7C, 8A-8C, and 9A-9D. For example, the operations of process 1100 may be implemented by system 820, device 800, device 810, and/or DA server 900, or any component thereof. It would be clear to a person having ordinary skill in the art how other processes are implemented based on the components depicted in FIGS. 1-4, 6A-B, 7A-C, 8A-C, and 9A-D.

8. Process for Providing Notifications

FIG. 12 illustrates process 1200 for providing notifications, according to various examples. Process 1200 is performed, for example, using one or more electronic devices implementing a digital assistant. In some examples, process 1200 is performed using a client-server system (e.g., system 100), and the blocks of process 1200 are divided up in any manner between the server (e.g., DA server 106) and a client device. In other examples, the blocks of process 1200 are divided up between the server and multiple client devices (e.g., a mobile phone and a smart watch). Thus, while portions of process 1200 are described herein as being performed by particular devices of a client-server system, it will be appreciated that process 1200 is not so limited. In other examples, process 1200 is performed using only a client device (e.g., user device 104) or only multiple client devices. In process 1200, some blocks are, optionally, combined, the order of some blocks is, optionally, changed, and some blocks are, optionally, omitted. In some examples, additional steps may be performed in combination with the process 1200.

At block 1202, an indication of a notification is received (e.g., by notifications module 830).

At block 1204, in accordance with receiving the indication of the notification, it is determined whether an output associated with the notification would interrupt a user associated with an electronic device (e.g., 800, 810) (e.g., by determination module 850). In some examples, determining whether the output associated with the notification would interrupt the user includes determining whether the user is speaking, listening, e.g., to media or another person, or otherwise engaged in an activity. In some examples, determining whether the output associated with the notification would interrupt the user includes determining whether the notification is important, timely, and/or relevant.

At block 1206, in accordance with a determination that the output would not interrupt the user, the output is caused to be provided (e.g., by notifications module 830).

At block 1208, in accordance with a determination that the output would interrupt the user, causing the output to be provided is forgone (e.g., by notifications module 830).

The operations described above with reference to FIG. 12 are optionally implemented by components depicted in FIGS. 1-4, 6A-6B, 7A-7C, 8A-8C, and 9A-9D. For example, the operations of process 1200 may be implemented by system 820, device 800, device 810, and/or DA server 900, or any component thereof. It would be clear to a person having ordinary skill in the art how other processes are implemented based on the components depicted in FIGS. 1-4, 6A-6B, 7A-7C, 8A-8C, and 9A-9D.

In accordance with some implementations, a computer-readable storage medium (e.g., a non-transitory computer readable storage medium) is provided, the computer-readable storage medium storing one or more programs for execution by one or more processors of an electronic device, the one or more programs including instructions for performing any of the methods or processes described herein.

In accordance with some implementations, an electronic device (e.g., a portable electronic device) is provided that comprises means for performing any of the methods or processes described herein.

In accordance with some implementations, an electronic device (e.g., a portable electronic device) is provided that comprises a processing unit configured to perform any of the methods or processes described herein.

In accordance with some implementations, an electronic device (e.g., a portable electronic device) is provided that comprises one or more processors and memory storing one or more programs for execution by the one or more processors, the one or more programs including instructions for performing any of the methods or processes described herein.

The foregoing description, for purpose of explanation, has been described with reference to specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings. The embodiments were chosen and described in order to best explain the principles of the techniques and their practical applications. Others skilled in the art are thereby enabled to best utilize the techniques and various embodiments with various modifications as are suited to the particular use contemplated.

Although the disclosure and examples have been fully described with reference to the accompanying drawings, it is to be noted that various changes and modifications will become apparent to those skilled in the art. Such changes and modifications are to be understood as being included within the scope of the disclosure and examples as defined by the claims.

As described above, one aspect of the present technology is the gathering and use of data available from various sources to improve the relevance of notification outputs provided for a user. The present disclosure contemplates that in some instances, this gathered data may include personal information data that uniquely identifies or can be used to contact or locate a specific person. Such personal information data can include demographic data, location-based data, telephone numbers, email addresses, twitter IDs, home addresses, data or records relating to a user's health or level of fitness (e.g., vital signs measurements, medication information, exercise information), date of birth, or any other identifying or personal information.

The present disclosure recognizes that the use of such personal information data, in the present technology, can be used to the benefit of users. For example, the personal information data can be used to provide notification outputs relevant for a particular user. Further, other uses for personal information data that benefit the user are also contemplated by the present disclosure. For instance, health and fitness data may be used to provide insights into a user's general wellness, or may be used as positive feedback to individuals using technology to pursue wellness goals.

The present disclosure contemplates that the entities responsible for the collection, analysis, disclosure, transfer, storage, or other use of such personal information data will comply with well-established privacy policies and/or privacy practices. In particular, such entities should implement and consistently use privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining personal information data private and secure. Such policies should be easily accessible by users, and should be updated as the collection and/or use of data changes. Personal information from users should be collected for legitimate and reasonable uses of the entity and not shared or sold outside of those legitimate uses. Further, such collection/sharing should occur after receiving the informed consent of the users. Additionally, such entities should consider taking any needed steps for safeguarding and securing access to such personal information data and ensuring that others with access to the personal information data adhere to their privacy policies and procedures. Further, such entities can subject themselves to evaluation by third parties to certify their adherence to widely accepted privacy policies and practices. In addition, policies and practices should be adapted for the particular types of personal information data being collected and/or accessed and adapted to applicable laws and standards, including jurisdiction-specific considerations. For instance, in the US, collection of or access to certain health data may be governed by federal and/or state laws, such as the Health Insurance Portability and Accountability Act (HIPAA); whereas health data in other countries may be subject to other regulations and policies and should be handled accordingly. Hence different privacy practices should be maintained for different personal data types in each country.

Despite the foregoing, the present disclosure also contemplates embodiments in which users selectively block the use of, or access to, personal information data. That is, the present disclosure contemplates that hardware and/or software elements can be provided to prevent or block access to such personal information data. For example, in the case of collecting context information associated with users (e.g., to improve the determination of whether notifications are relevant), the present technology can be configured to allow users to select to “opt in” or “opt out” of participation in the collection of personal information data during registration for services or anytime thereafter. In another example, users can select not to provide context information for determination of whether notifications are relevant. In yet another example, users can select to limit the length of time such context information is maintained. In addition to providing “opt in” and “opt out” options, the present disclosure contemplates providing notifications relating to the access or use of personal information. For instance, a user may be notified upon downloading an app that their personal information data will be accessed and then reminded again just before personal information data is accessed by the app.

Moreover, it is the intent of the present disclosure that personal information data should be managed and handled in a way to minimize risks of unintentional or unauthorized access or use. Risk can be minimized by limiting the collection of data and deleting data once it is no longer needed. In addition, and when applicable, including in certain health related applications, data de-identification can be used to protect a user's privacy. De-identification may be facilitated, when appropriate, by removing specific identifiers (e.g., date of birth, etc.), controlling the amount or specificity of data stored (e.g., collecting location data at a city level rather than at an address level), controlling how data is stored (e.g., aggregating data across users), and/or other methods.

Therefore, although the present disclosure broadly covers use of personal information data to implement one or more various disclosed embodiments, the present disclosure also contemplates that the various embodiments can also be implemented without the need for accessing such personal information data. That is, the various embodiments of the present technology are not rendered inoperable due to the lack of all or a portion of such personal information data. For example, the relevance of a notification can be determined based on non-personal information data (e.g., the content of the notification) or a bare minimum amount of personal information, such as the content being requested by the device associated with a user, other non-personal information available to a model that determines whether notifications are relevant, or publicly available information. 

What is claimed is:
 1. A non-transitory computer-readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by one or more processors of an electronic device, cause the electronic device to: receive an indication of a notification; in accordance with receiving the indication of the notification: obtain one or more data streams from one or more sensors; determine, based on the one or more data streams, whether a user associated with the electronic device is speaking; and in accordance with a determination that the user is not speaking: cause an output associated with the notification to be provided.
 2. The non-transitory computer-readable storage medium of claim 1, wherein the output associated with the notification includes a content of the notification.
 3. The non-transitory computer-readable storage medium of claim 1, wherein the one or more programs further comprise instructions, which when executed by the one or more processors, cause the electronic device to: in accordance with a determination that the user is speaking: forgo causing the output associated with the notification to be provided; and cause a second output associated with the notification to be provided, the second output being shorter in duration than the first output.
 4. The non-transitory computer-readable storage medium of claim 1, wherein obtaining the one or more data streams includes: concurrently obtaining the one or more data streams for a predetermined duration.
 5. The non-transitory computer-readable storage medium of claim 4, wherein the predetermined duration is based on a determined relevance score of the notification.
 6. The non-transitory computer-readable storage medium of claim 1, wherein determining that the user is not speaking includes: determining, based on the one or more data streams, that the user is not speaking for a second predetermined duration.
 7. The non-transitory computer-readable storage medium of claim 1, wherein: the one or more sensors include a microphone and a vibration sensor; and the one or more data streams include a first data stream obtained from the microphone and a second data stream obtained from the vibration sensor.
 8. The non-transitory computer-readable storage medium of claim 7, wherein determining whether the user associated with the electronic device is speaking includes: determining that the first data stream indicates that the user is speaking; determining that the second data stream indicates that the user is speaking; and in accordance with determining that the first data stream indicates that the user is speaking and in accordance with determining that the second data stream indicates that the user is speaking: determining that the user is speaking.
 9. The non-transitory computer-readable storage medium of claim 7, wherein determining whether the user associated with the electronic device is speaking includes: determining that the first data stream indicates that the user is speaking; determining that the second data stream indicates that the user is not speaking; and in accordance with determining that the first data stream indicates that the user is speaking and determining that the second data stream indicates that the user is not speaking, determining that the user is not speaking.
 10. The non-transitory computer-readable storage medium of claim 9, wherein: determining that the first data stream indicates that the user is speaking includes determining that a first portion of the first data stream indicates that the user is speaking; determining that the second data stream indicates that the user is not speaking includes determining that a second portion of the second data stream indicates that the user is not speaking; the first portion and the second portion have a same duration; and the first portion and the second portion are obtained at a same time.
 11. The non-transitory computer-readable storage medium of claim 1, wherein determining whether the user associated with the electronic device is speaking includes: determining that the one or more data streams include a third portion indicating that the user is speaking; determining that a duration of the third portion is below a threshold duration; and in accordance with a determination that the duration of the third portion is below the threshold duration: determining that the user is not speaking.
 12. The non-transitory computer-readable storage medium of claim 1, wherein the electronic device comprises a headset.
 13. The non-transitory computer-readable storage medium of claim 12, wherein: the electronic device includes the one or more sensors; receiving the indication of the notification includes receiving the indication from an external electronic device, the notification being received at the external electronic device; and causing the output associated with the notification to be provided includes providing the output with a speaker of the electronic device.
 14. The non-transitory computer-readable storage medium of claim 13, wherein the one or more programs further comprise instructions, which when executed by the one or more processors, cause the electronic device to: while providing the output: detect a speech input; and in response to detecting the speech input, terminate the output.
 15. The non-transitory computer-readable storage medium of claim 13, wherein the one or more programs further comprise instructions, which when executed by the one or more processors, cause the electronic device to: while providing the output: detect a signal indicative of device removal; and in response to detecting the signal, terminate the output.
 16. The non-transitory computer-readable storage medium of claim 13, wherein the one or more programs further comprise instructions, which when executed by the one or more processors, cause the electronic device to: while providing the output: detect a predetermined gesture performed at the electronic device; and in response to detecting the predetermined gesture, terminate the output.
 17. The non-transitory computer-readable storage medium of claim 1, wherein: receiving the indication of the notification includes receiving the notification at the electronic device; obtaining the one or more data streams includes obtaining the one or more data streams from an external electronic device including the one or more sensors; and causing the output associated with the notification to be provided includes causing the external electronic device to provide the output.
 18. The non-transitory computer-readable storage medium of claim 1, wherein the one or more programs further comprise instructions, which when executed by the one or more processors, cause the electronic device to: while causing the output associated with the notification to be provided: receive an indication of a second notification; and in accordance with receiving the indication of the second notification: cause an output associated with the second notification to be provided after the output associated with the notification is provided.
 19. The non-transitory computer-readable storage medium of claim 1, wherein the one or more programs further comprise instructions, which when executed by the one or more processors, cause the electronic device to: determine whether a second external electronic device has provided a second output associated with the notification; and in accordance with determining that the second external electronic device has provided the second output associated with the notification: forgo causing the output associated with the notification to be provided; and wherein causing the output associated with the notification to be provided is performed in accordance with determining that the second external electronic device has not provided the second output associated with the notification.
 20. The non-transitory computer-readable storage medium of claim 1, wherein the one or more programs further comprise instructions, which when executed by the one or more processors, cause the electronic device to: determine an importance score of the notification based on context information associated with the notification; and determine whether the importance score exceeds a first threshold; and wherein causing the output associated with the notification to be provided is performed in accordance with determining that the importance score exceeds the first threshold.
 21. The non-transitory computer-readable storage medium of claim 1, wherein the one or more programs further comprise instructions, which when executed by the one or more processors, cause the electronic device to: determine a timeliness score of the notification based on context information associated with the user; and determine whether the timeliness score exceeds a second threshold; and wherein causing the output associated with the notification to be provided is performed in accordance with determining that the timeliness score exceeds the second threshold.
 22. An electronic device, comprising: one or more processors; a memory; and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for: receiving an indication of a notification; in accordance with receiving the indication of the notification: obtaining one or more data streams from one or more sensors; determining, based on the one or more data streams, whether a user associated with the electronic device is speaking; and in accordance with a determination that the user is not speaking: causing an output associated with the notification to be provided.
 23. A method for providing notifications, the method comprising: at an electronic device: receiving an indication of a notification; in accordance with receiving the indication of the notification: obtaining one or more data streams from one or more sensors; determining, based on the one or more data streams, whether a user associated with the electronic device is speaking; and in accordance with a determination that the user is not speaking: causing an output associated with the notification to be provided.
 24. A non-transitory computer-readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by one or more processors of an electronic device, cause the electronic device to: cause a first output associated with a received notification to be provided; after the first output is provided: obtain one or more data streams from one or more sensors; determine, based on the one or more data streams, whether a user associated with the electronic device is speaking; in accordance with a determination that the user is speaking: provide at least a portion of the one or more data streams to an external electronic device, the portion including data representing a received speech input requesting performance of a task associated with the notification; receive, from the external electronic device, an indication that the task has been initiated; and cause a second output based on the received indication to be provided.
 25. The non-transitory computer-readable storage medium of claim 24, wherein the speech input does not include a trigger phrase for initiating a digital assistant.
 26. The non-transitory computer-readable storage medium of claim 24, wherein the one or more programs further comprise instructions, which when executed by the one or more processors, cause the electronic device to: in accordance with determining that the user is not speaking: forgo providing the one or more data streams to the external electronic device; and discard the one or more data streams.
 27. The non-transitory computer-readable storage medium of claim 24, wherein obtaining the one or more data streams includes: concurrently obtaining the one or more data streams for a predetermined duration.
 28. The non-transitory computer-readable storage medium of claim 24, wherein: the one or more sensors include a microphone and a vibration sensor; and the one or more data streams include a first data stream obtained from the microphone and a second data stream obtained from the vibration sensor.
 29. The non-transitory computer-readable storage medium of claim 28, wherein determining whether the user is speaking includes determining whether the second data stream indicates that the user is speaking for a second predetermined duration.
 30. The non-transitory computer-readable storage medium of claim 28, wherein determining whether the user is speaking includes: determining that the second data stream includes a portion indicating that the user is speaking; determining whether a duration of the portion indicating that the user is speaking is below a threshold duration; and in accordance with determining that the duration is below the threshold duration: determining that the user is not speaking.
 31. The non-transitory computer-readable storage medium of claim 28, wherein determining whether the user is speaking includes: determining that the first data stream indicates that the user is speaking; determining that the second data stream indicates that the user is not speaking; and in accordance with determining that the first data stream indicates that the user is speaking and determining that the second data stream indicates that the user is not speaking, determining that the user is not speaking.
 32. The non-transitory computer-readable storage medium of claim 24, wherein the electronic device comprises a headset.
 33. The non-transitory computer-readable storage medium of claim 32, wherein: the electronic device includes the one or more sensors; causing the first output to be provided includes providing the first output with a speaker of the electronic device; and causing the second output to be provided includes providing the second output with the speaker.
 34. The non-transitory computer-readable storage medium of claim 33, wherein the external electronic device: receives, from the electronic device, the data representing the received speech input requesting performance of the task associated with the notification; sends the data to a second external electronic device; and in accordance with sending the data to the second external electronic device: receives, from the second external electronic device, a result based on the initiation of the task; and in accordance with receiving the result based on the initiation of the task: sends the indication that the task has been initiated to the electronic device.
 35. The non-transitory computer-readable storage medium of claim 24, wherein: causing the first output to be provided includes causing a second external electronic device to provide the first output, the second external electronic device including the one or more sensors; obtaining the one or more data streams includes obtaining the one or more data streams from the second external electronic device; and causing the second output to be provided includes causing the second external electronic device to provide the second output.
 36. The non-transitory computer-readable storage medium of claim 35, wherein the external electronic device: receives, from the electronic device, the data representing the received speech input requesting performance of the task associated with the notification; determines whether the speech input is associated with an intent to perform an action associated the notification; and in accordance with determining that the speech input is associated with an intent to perform an action associated with the notification: initiates the task; and sends the indication that the task has been initiated to the electronic device.
 37. An electronic device, comprising: one or more processors; a memory; and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for: causing a first output associated with a received notification to be provided; after the first output is provided: obtaining one or more data streams from one or more sensors; determining, based on the one or more data streams, whether a user associated with the electronic device is speaking; in accordance with a determination that the user is speaking: providing at least a portion of the one or more data streams to an external electronic device, the portion including data representing a received speech input requesting performance of a task associated with the notification; receiving, from the external electronic device, an indication that the task has been initiated; and causing a second output based on the received indication to be provided.
 38. A method for responding to notifications, the method comprising: at an electronic device: causing a first output associated with a received notification to be provided; after the first output is provided: obtaining one or more data streams from one or more sensors; determining, based on the one or more data streams, whether a user associated with the electronic device is speaking; in accordance with a determination that the user is speaking: providing at least a portion of the one or more data streams to an external electronic device, the portion including data representing a received speech input requesting performance of a task associated with the notification; receiving, from the external electronic device, an indication that the task has been initiated; and causing a second output based on the received indication to be provided. 